Instant Pot Spaghetti is a quick one-pot wonder, packed with seasoned Italian sausage and a robust marinara. Super quick, super easy, and downright delicious!
SAUSAGE: Set the Instant Pot to 'sauté' mode. Add olive oil, followed by the Italian sausage. Sear for about 1 minute on each side before adding in the onion, garlic, and seasonings. Cook until the sausage is fully browned, breaking it into smaller pieces as it cooks. Turn off the Instant Pot.
SAUCE: Pour the marinara sauce into the pot. Fill the empty marinara jar with 2 cups water, shake to combine, then pour into the pot. Add the remaining 2½ cups water and the tomato sauce; stir to combine. Break the spaghetti strands in half. Fan them out in a criss-cross pattern on top of the sauce. Gently press down on the spaghetti, submerging it under the liquid.
PRESSURE COOK: Secure the Instant Pot lid and set the valve to the sealed position. Select 'manual' mode, and set it to high pressure for 8 minutes. Once done, quickly release the pressure to prevent overcooking the spaghetti. Upon opening, the mixture might seem liquid-y. Stir thoroughly, allowing the sauce to thicken and combine with the pasta. Taste and adjust the seasoning as needed (I'll typically add another ½ tsp salt).
ENJOY: Serve hot, garnished with Parmesan cheese and parsley.
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Notes
Note 1: Marinara sauce: This recipe is relying on a really good-quality, flavorful marinara sauce for flavor. And Rao's® is hands-down our favorite! Rao’s Marinara has lovely additions like olive oil, onions, garlic, basil, and more-- which add so much flavor to this recipe.Note 2:Spaghetti: Stick to regular spaghetti for this recipe. Those thin, thick, or gluten-free versions have different cooking times, and we haven’t tested these varieties yet.Note 3: Parmesan: We like to grab a block of Parmesan cheese and grate it right over the spaghetti using a microplane.