This tuna melt is exactly the kind of lunch that makes a busy day feel a little easier.
Crispy, buttery bread hugs a creamy tuna salad filling, and it all gets topped with a thick layer of melted cheddar.
It comes together in under thirty minutes with pantry staples you probably already have on hand.
If you grew up loving diner style sandwiches, this one will feel instantly familiar.
I make this on repeat during the school year because it is fast, filling, and endlessly customizable.
Once you try my version of this best tuna melt recipe, with a hint of Dijon and crunchy celery, you will understand why it has earned a permanent spot in my lunch rotation.
This sandwich also happens to be a great way to use up canned tuna, which I always keep stocked for nights when I do not feel like defrosting anything.
If you love easy seafood lunches, you might also want to bookmark my tuna egg salad for another quick, protein packed option.
| Quick Recipe Summary | |
|---|---|
| Prep Time | 15 minutes |
| Cook Time | 10 minutes |
| Total Time | 25 minutes |
| Servings | 4 sandwiches |
| Difficulty Level | Easy |
Why You’ll Love This Tuna Melt
This sandwich checks every box for a satisfying weekday meal. It is quick, it is comforting, and it uses ingredients you likely already have in the fridge and pantry.
Here is why this recipe earns a permanent spot in your regular rotation.
- Ready in about 25 minutes from start to finish, so it works for lunch or a fast weeknight dinner
- Uses simple, budget friendly ingredients like canned tuna, cheddar cheese, and pantry staples
- Crispy, buttery exterior gives way to a warm, creamy, cheesy interior
- Easily customizable with different cheeses, breads, and mix ins
- A great way to sneak more omega-3 rich seafood into your week
If you are building out a full lunch spread, this pairs wonderfully with my tuna pasta salad for those days when one sandwich just is not enough.
Ingredients
You only need a handful of ingredients to make this best tuna melt recipe, and most of them are things you probably already have on hand. Here is everything you will need.
- 2 (5 ounce) cans chunk light or albacore tuna, drained well
- 1/3 cup mayonnaise
- 1 tablespoon Dijon mustard
- 2 celery stalks, finely diced
- 1/4 cup red onion, finely diced
- 2 tablespoons dill pickles, finely chopped
- 1/4 teaspoon salt
- 1/4 teaspoon black pepper
- 8 slices sourdough bread
- 3 tablespoons butter, softened
- 1 large tomato, thinly sliced
- 8 slices sharp cheddar cheese
For another canned fish shortcut that comes together just as quickly, try my lemon tuna pasta the next time you need dinner on the table fast.
Kitchen Equipment Needed
Nothing fancy is required here. A few basic tools will get this sandwich from bowl to skillet in no time.
- Medium mixing bowl
- Cutting board and sharp knife
- Measuring cups and spoons
- Cast iron or nonstick skillet
- Spatula
- Can opener
Read Also: Tuna Noodle Casserole
Recommended Products for This Recipe
These are a few products I personally reach for when I make this sandwich, based on what has genuinely made the process easier or the results better.
None of these are required, but they are worth considering if you make tuna melts often.
1. Wild Planet Wild Caught Albacore Tuna
I like using a high quality, sustainably caught tuna for this recipe because the texture stays firm instead of mushy, and the flavor is noticeably cleaner.
It makes a real difference in a sandwich where the tuna salad is the star of the show.
2. Lodge Cast Iron Skillet
A good cast iron skillet gives you that deep, even golden crust on the bread that a thin nonstick pan just cannot replicate.
It also holds heat well, which helps the cheese melt fully before the bread over browns.
3. Cabot Sharp Cheddar Cheese Block
I always recommend buying a block of sharp cheddar and slicing it yourself rather than using pre-sliced cheese.
It melts more smoothly and gives you that stretchy, gooey pull that makes a melt feel worth making.
4. OXO Good Grips Fish Spatula
This thin, flexible spatula makes flipping a loaded sandwich so much easier without spilling the tuna salad everywhere.
The angled edge slides right under the bread without disturbing the crust.
For a similar sandwich but built around another protein entirely, my salmon croquettes are a great next recipe to try.
Step-by-Step Instructions: How to Make Tuna Melt
Follow these steps closely and you will have a perfectly golden, cheesy tuna melt every time. Each step is broken down so even a first time cook can follow along with confidence.
1. Make the Tuna Salad
- Open both cans of tuna and drain them well, pressing gently with a fork to remove excess liquid so your filling does not turn watery
- Add the drained tuna to a medium mixing bowl and break it up into smaller flakes with a fork
- Add the mayonnaise, Dijon mustard, diced celery, diced red onion, and chopped dill pickles to the bowl
- Season with the salt and black pepper
- Stir everything together until fully combined and the mixture holds together when scooped
2. Prep the Bread and Cheese
- Lay all 8 slices of sourdough bread out on a clean cutting board or countertop
- Spread softened butter evenly over one side of each slice, making sure to reach the edges so the whole slice toasts evenly
- Flip 4 of the slices so the buttered side is facing down, since this side will touch the skillet
- Place one slice of cheddar cheese on top of each of these 4 buttered slices to help anchor the tuna salad in place
3. Assemble the Sandwiches
- Divide the tuna salad mixture evenly among the 4 slices topped with cheese, spreading it out to the edges
- Lay 2 to 3 slices of fresh tomato on top of the tuna salad on each sandwich
- Place a second slice of cheddar cheese on top of the tomato slices to help everything hold together as it melts
- Top each sandwich with the remaining 4 slices of bread, buttered side facing up
4. Cook the Tuna Melts
- Heat your skillet over medium low heat for about 2 minutes before adding any sandwiches
- Place 2 sandwiches into the skillet at a time, leaving space so they are easy to flip
- Cook for 3 to 4 minutes on the first side, checking occasionally, until the bread is deep golden brown
- Carefully flip each sandwich with a spatula and cook for another 3 to 4 minutes on the second side, until the cheese is fully melted and the bread is golden on both sides
- Reduce the heat slightly if the bread is browning faster than the cheese is melting, so the center has time to warm through
- Repeat with the remaining sandwiches, adding a little extra butter to the skillet if it looks dry
5. Slice and Serve
- Transfer the finished sandwiches to a cutting board and let them rest for 1 minute so the filling sets slightly
- Slice each sandwich in half on a diagonal for classic diner style presentation
- Serve immediately while the cheese is still warm and gooey
If you love the format of a warm, cheesy sandwich, you might also enjoy my old fashioned salmon patties for another simple canned seafood dinner.
Tips for The Best Tuna Melt
A few small details make a big difference in how this sandwich turns out. Keep these tips in mind as you cook.
- Drain the tuna thoroughly, since excess liquid is the number one cause of a soggy sandwich
- Use room temperature butter so it spreads evenly without tearing the bread
- Keep the heat at medium low so the bread has time to fully toast while the cheese melts through
- Do not skip the second layer of cheese on top of the tomato, since it acts as a seal that holds the sandwich together
- Let the tuna salad chill in the fridge for 15 minutes before assembling if you have extra time, since this helps the flavors meld
This sandwich pairs nicely with the same crowd pleasing energy as my chicken salad sandwich, so keep that one on hand for days when you want a little variety.
Serving Suggestions
A tuna melt is satisfying on its own, but a few simple sides can round it out into a full meal. Here are some of my favorite pairings.
- A cup of warm tomato soup for dipping, especially on a cold day
- A crisp side salad with a light vinaigrette to balance the richness of the melted cheese
- Kettle style potato chips for extra crunch alongside the sandwich
- A pickle spear on the side, since the acidity cuts through the creamy tuna salad
- A scoop of Classic Egg Salad if you are serving a lunch spread for a crowd
Variations of Tuna Melt
Once you have the basic method down, this sandwich is easy to customize based on what you have on hand or what flavors you are craving.
Here are some variations worth trying.
- Swap the cheddar for provolone, Swiss, or pepper jack for a different melt texture and flavor
- Add a spoonful of capers or chopped dill for a brighter, more herby tuna salad
- Use an English muffin or bagel instead of sourdough for an open faced version
- Stir a little hot sauce or sriracha into the tuna salad if you like some heat
- Make it lower carb by skipping the top slice of bread and serving it open faced under the broiler
If you like experimenting with mix ins, my avocado egg salad uses a similar creamy base and is worth trying for lunch variety.
Storage and Reheating
This sandwich is best enjoyed fresh, but the tuna salad component stores well for later use. Here is how to keep everything fresh.
- Store leftover tuna salad in an airtight container in the refrigerator for up to 3 days
- Assembled, cooked sandwiches can be refrigerated for up to 1 day, though the bread will soften over time
- Reheat cooked sandwiches in a skillet over low heat for a few minutes per side to re-crisp the bread
- Avoid microwaving a fully assembled sandwich, since it will make the bread soggy instead of crisp
- Do not freeze the tuna salad, since mayonnaise based mixtures do not thaw well and can separate
For another make ahead friendly option, check out my grilled fish tacos with slaw for a change of pace later in the week.
Nutritional Facts
Nutrition will vary slightly depending on your exact ingredients and portion sizes, but here is a general breakdown per sandwich.
- Calories: approximately 480 per sandwich
- Protein: approximately 28 grams
- Fat: approximately 26 grams
- Carbohydrates: approximately 32 grams
- Sodium: approximately 780 milligrams
- Fiber: approximately 2 grams
Fish forward meals like this one pair well with a light starter, so consider my seafood stew if you want to build a full seafood themed dinner night.
Health Benefits of Key Ingredients
Beyond being delicious, this sandwich brings a few genuine nutritional perks to the table thanks to its main ingredients. Here is what each key component contributes.
- Tuna is an excellent source of lean protein and omega-3 fatty acids, which support heart and brain health
- Celery adds fiber and a dose of vitamin K with very few calories
- Tomato contributes vitamin C and lycopene, an antioxidant linked to heart health
- Cheddar cheese provides calcium and additional protein to help keep you full longer
- Whole grain or sourdough bread offers fiber and a slower release of energy compared to white bread
If soup and sandwich combos are your thing, my tomato soup is the natural partner to this melt.
FAQs About Tuna Melt
1. What is the best bread to use for a tuna melt?
Sourdough is my top pick because it toasts up sturdy and holds its shape well under a warm, creamy filling.
White sandwich bread or an English muffin also work nicely if that is what you have on hand.
2. Can I make the tuna salad ahead of time?
Yes, the tuna salad can be made up to 3 days in advance and stored in an airtight container in the fridge.
This actually helps the flavors develop even more before you assemble the sandwiches.
3. Why is my tuna melt soggy?
The most common cause is not draining the canned tuna thoroughly enough before mixing it with mayonnaise.
Pressing the tuna firmly with a fork over the sink before adding any other ingredients solves this almost every time.
4. Can I make this recipe without mayonnaise?
Yes, plain full fat Greek yogurt makes a solid substitute for mayonnaise if you prefer a lighter or egg free version.
The texture will be slightly tangier but still creamy enough to hold the tuna salad together.
5. What is the best way to melt the cheese evenly?
Cooking over medium low heat rather than high heat gives the cheese time to fully melt before the bread burns.
Covering the skillet with a lid for the last minute of cooking also helps trap heat and speed up melting.
For one more comforting lunch idea to add to your rotation, my broccoli cheddar soup makes an excellent dipping partner for this sandwich.
Best Tuna Melt Recipe
Ingredients
- 2 (5 ounce) cans chunk light or albacore tuna drained well
- 1/3 cup mayonnaise 80g
- 1 tablespoon Dijon mustard
- 2 stalks celery finely diced
- 1/4 cup red onion finely diced
- 2 tablespoons dill pickles finely chopped
- 1/4 teaspoon salt
- 1/4 teaspoon black pepper
- 8 slices sourdough bread
- 3 tablespoons butter softened, 42g
- 1 large tomato thinly sliced
- 8 slices sharp cheddar cheese
Equipment
- Medium mixing bowl
- Cutting board and sharp knife
- Measuring cups and spoons
- Cast iron or nonstick skillet
- Spatula
- Can opener
Method
- Drain the tuna well, pressing gently with a fork to remove excess liquid, then flake it into a medium mixing bowl.
- Add the mayonnaise, Dijon mustard, diced celery, red onion, chopped dill pickles, salt, and pepper. Stir until fully combined and the mixture holds together.
- Lay out all 8 slices of sourdough bread and spread the softened butter evenly over one side of each slice.
- Flip 4 slices so the buttered side is facing down. Place one slice of cheddar cheese on each of these slices.
- Divide the tuna salad evenly among the 4 slices topped with cheese, spreading it to the edges. Top with 2-3 tomato slices and a second slice of cheese.
- Top each with the remaining bread, buttered side up. Heat a skillet over medium-low heat for 2 minutes.
- Cook 2 sandwiches at a time for 3-4 minutes per side, until golden brown and the cheese is fully melted. Repeat with remaining sandwiches.
- Transfer to a cutting board, let rest for 1 minute, then slice in half and serve warm.
Nutrition
Notes
- Drain the tuna thoroughly: Excess liquid is the number one cause of a soggy sandwich. Press firmly with a fork over the sink to remove as much moisture as possible.
- Use room temperature butter: It spreads evenly without tearing the bread, ensuring every bite gets a crispy, golden crust.
- Cook over medium-low heat: This gives the cheese time to fully melt and the filling to warm through before the bread burns. Cover the skillet with a lid for the last minute to speed up melting.
- Don’t skip the second cheese layer: Placing a slice of cheese on the bottom and top of the filling acts as a seal that holds the sandwich together and prevents it from getting soggy.
- Make ahead: The tuna salad can be made up to 3 days in advance and stored in an airtight container in the refrigerator. The flavors will even develop and improve over time.
- Substitutions: Swap cheddar for provolone, Swiss, or pepper jack. Use plain Greek yogurt instead of mayonnaise for a lighter, egg-free version. Add hot sauce or sriracha for a spicy kick.
- Storage: Leftover tuna salad can be refrigerated for up to 3 days. Assembled, cooked sandwiches are best enjoyed fresh but can be stored for up to 1 day.
- Reheating: Reheat cooked sandwiches in a skillet over low heat for a few minutes per side to re-crisp the bread. Avoid microwaving as it will make the bread soggy.
Private Notes
Tried this recipe?
Let us know how it was!Conclusion
This tuna melt is proof that a truly great sandwich does not need to be complicated.
With a handful of pantry staples and about 25 minutes, you get a crispy, cheesy, satisfying meal that works for lunch or dinner alike.
I hope this becomes a regular in your kitchen the way it has in mine.
If you try it, I would love to hear how it turned out, so drop a comment below or share a photo the next time you make it.
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