Easy Pesto Pasta
This Easy Pesto Pasta is a vibrant, weeknight-friendly dish that comes together in under 30 minutes with just a handful of quality ingredients. Freshly cooked pasta is tossed with fragrant basil pesto, a splash of starchy pasta water, and freshly grated Parmesan to create a silky, restaurant-quality sauce that clings to every strand. It requires no complicated techniques, no heavy cream, and no lengthy cook time — just bold, herby flavor in every single bite.
Equipment
- Large pasta pot At least 6-quart capacity
- Colander For draining cooked pasta
- Large skillet or sauté pan For tossing and finishing the pasta
- Measuring cups and spoons
- Ladle or heatproof measuring cup For scooping reserved pasta water
- Microplane zester or box grater For grating fresh Parmesan
- Wooden spoon or tongs For tossing the pasta
- Chef's knife and cutting board For mincing garlic (optional)
Ingredients
- 12 oz spaghetti or linguine 340g; or any pasta shape you prefer
- 1/2 cup basil pesto About 4–5 tablespoons; store-bought or homemade
- 1/3 cup freshly grated Parmesan cheese Plus more for serving
- 2-3 tbsp reserved pasta cooking water Plus more as needed to loosen the sauce
- 2 tbsp extra virgin olive oil
- 2 cloves garlic Minced; optional, for extra depth
- 1/2 tsp kosher salt Plus 1–2 tablespoons more for the pasta water
- 1/4 tsp freshly ground black pepper
- 1/4 tsp red pepper flakes Optional
For Garnish
- fresh basil leaves To taste
- pine nuts Toasted; optional
Instructions
- Fill a large pot with 4–5 quarts of cold water and bring to a full rolling boil over high heat. Once boiling, add 1–2 tablespoons of kosher salt — the water should taste pleasantly salty like mild seawater.
- Add the pasta and stir immediately to prevent sticking; cook until al dente according to package directions, checking 1–2 minutes early. Before draining, scoop out at least 1/2 cup of starchy pasta water and set aside, then drain the pasta without rinsing.
- Heat the olive oil in a large skillet over medium heat, then add the minced garlic and cook for 30–45 seconds, stirring constantly, until fragrant and just barely golden. Skip this step if you prefer and simply warm the oil in the pan.
- Remove the skillet from the heat, add the drained pasta and basil pesto, and toss to coat. Add reserved pasta water 1 tablespoon at a time, tossing continuously, until the sauce is silky, glossy, and clings evenly to every strand.
- Add the 1/2 teaspoon kosher salt, black pepper, and red pepper flakes (if using), then toss to distribute. Taste and adjust seasoning as needed.
- With the pan off the heat, sprinkle in the freshly grated Parmesan and toss until fully melted into the sauce. Taste one final time and adjust with more pesto, Parmesan, salt, or pasta water as needed.
- Divide the pasta among 4 bowls, top each with extra Parmesan, fresh basil leaves, and toasted pine nuts if using. Finish with a light drizzle of extra virgin olive oil and serve immediately.
Notes
- Always save pasta water before draining — the starchy liquid is essential for creating a silky, emulsified pesto sauce that coats the noodles evenly.
- Never add pesto over high heat. Excessive heat causes basil to oxidize and turn dark, and can make the sauce taste bitter. Always toss off the heat or on the lowest setting.
- Let refrigerated pesto come to room temperature for 10–15 minutes before using. Cold pesto does not distribute as evenly through the hot pasta.
- Use bronze-die cut pasta (such as Barilla Al Bronzo) for the best results — the rough surface texture grips the pesto sauce far better than standard smooth pasta.
- Grate your own Parmesan from a block. Pre-shredded cheese contains anti-caking agents that prevent smooth melting and can make the sauce grainy.
- For a vegan version, use a pesto made without Parmesan (or substitute nutritional yeast) and skip the cheese topping entirely.
- Add grilled chicken, sautéed shrimp, or halved cherry tomatoes to the finished pasta for a more substantial, protein-packed meal.
- Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in a skillet over medium-low heat with a splash of water or olive oil, tossing frequently until warmed through.
- This dish is not ideal for freezing — the sauce can separate and the pasta texture suffers. Make only what you plan to eat within 3 days.
- Pesto pasta also tastes great served cold or at room temperature, making it a perfect make-ahead pasta salad for lunches and picnics.
Nutrition
Serving: 1ServingCalories: 480kcalCarbohydrates: 58gProtein: 16gFat: 20gSaturated Fat: 4gPolyunsaturated Fat: 3gMonounsaturated Fat: 11gCholesterol: 10mgSodium: 520mgPotassium: 210mgFiber: 3gSugar: 2gVitamin A: 8IUVitamin C: 4mgCalcium: 15mgIron: 12mg
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