This Instant Pot Sausage Rigatoni is the ultimate one-pot weeknight dinner — hearty Italian sausage, rigatoni pasta, and a rich, creamy tomato sauce all cooked together under pressure in under 30 minutes. The pasta absorbs every bit of savory flavor from the sausage and marinara as it cooks, and a finish of heavy cream and melted mozzarella transforms it into a restaurant-worthy meal with virtually no effort.
Silicone tipped tongs Optional; useful for breaking up sausage and tossing pasta
Ingredients
1lbItalian sausage455g; mild or hot, bulk or links with casings removed
1tbspolive oil15ml
3garlic clovesminced
1lbrigatoni pasta455g; uncooked; penne, ziti, or shells also work
24ozmarinara sauce680g; one standard jar; use a quality brand for best results
2cupschicken broth475ml
1tspdried Italian seasoning
½tspred pepper flakesoptional; increase to 1 tsp for a spicier version
salt and black pepperto taste
1cupheavy cream240ml; let sit at room temperature while pasta cooks; substitute half-and-half for a lighter dish
1½cupsshredded mozzarella cheeseabout 170g
½cupgrated Parmesan cheeseabout 50g; freshly grated from a wedge preferred
For garnish
fresh basiloptional; for garnish
Instructions
Set the Instant Pot to Sauté (medium). Add olive oil, then crumble in the sausage and cook for 5–7 minutes, breaking it into bite-sized pieces, until browned and no longer pink.
Add the minced garlic to the browned sausage and stir constantly for 30–45 seconds until fragrant, being careful not to let it burn.
Pour in about ½ cup of the chicken broth and use a wooden spoon to scrape up all the browned bits from the bottom — this prevents the burn warning and adds flavor.
Pour in the marinara sauce, remaining chicken broth, Italian seasoning, red pepper flakes, salt, and pepper; stir to combine. Add the uncooked rigatoni and press it into the liquid without stirring.
Secure the lid, set the valve to Sealing, and cook on High Pressure for 8 minutes (pot will take about 10 minutes to come to pressure first).
Carefully move the valve to Venting for a quick pressure release; keep hands and face away from the steam. Once the float valve drops, open the lid.
Stir in the heavy cream, then fold in the mozzarella and Parmesan until melted. Let rest 3–5 minutes to thicken, then taste for seasoning and garnish with fresh basil if desired.
Notes
Don't skip deglazing — scraping up all the browned bits after sautéing is critical to prevent the Instant Pot burn warning.
Do not stir the pasta after adding it to the liquid; stirring can cause sticking and trigger the burn notice.
Let the heavy cream come to room temperature before stirring it in — cold cream can cause the cheese to seize.
For al dente pasta, cook for 8 minutes. For very firm pasta, reduce to 7 minutes. The pasta will continue to soften as it rests.
Swap pork sausage for turkey sausage and half-and-half for heavy cream to make a lighter version.
To make it dairy-free, use coconut cream or cashew cream and your favorite dairy-free cheese alternatives.
Stir in fresh spinach or kale after pressure cooking — the residual heat will wilt the greens perfectly.
Store leftovers in an airtight container in the refrigerator for up to 4 days. The pasta thickens as it sits; add a splash of broth or cream when reheating.
Freeze in portion-sized containers for up to 3 months. Note that the cream sauce texture may change slightly after freezing.
To reheat on the stovetop, warm over medium heat with a splash of chicken broth, stirring occasionally. In the microwave, heat in 1-minute intervals, stirring between each.