Savory Instant Pot Chicken Spaghetti

The first time I made this spaghetti in the Instant Pot, I stood there watching the steam release like it was some kind of magic trick. My husband had walked in from work, caught a whiff of garlic and tomatoes, and asked what restaurant food I had picked up on the way home. When I told him I made it in under 30 minutes, he actually looked skeptical until he took that first bite and went quiet.

Last Tuesday my daughter had soccer practice and we had exactly 35 minutes to eat something warm before rushing out the door. I threw this together while helping her find her shin guards, and she ended up eating two bowls right there at the counter, still in her uniform. Sometimes the best recipes are the ones that save your evening.

Ingredients

• 2 large boneless skinless chicken breasts: Cutting into bite sized pieces helps them cook evenly and absorb more of that tomato sauce flavor
• 1 medium onion finely chopped: The smaller you chop the sweeter it gets as it sautes in the Instant Pot
• 3 cloves garlic minced: Do not let it brown or it will turn bitter
• 1 red bell pepper diced: Adds sweetness and a pop of color against the red sauce
• 1 can 400g crushed tomatoes: This becomes the base of your sauce so choose a brand you actually like the taste of
• 2 tablespoons tomato paste: Concentrated tomato flavor that deepens the whole dish
• 250g uncooked spaghetti broken in half: Breaking it helps it fit and cook more evenly
• 3 cups 720 ml low sodium chicken broth: Low sodium lets you control the salt level better
• 1 teaspoon Italian seasoning: The classic herb blend that makes everything taste homey
• 1 teaspoon paprika: Adds a subtle warmth and pretty color
• 1/2 teaspoon crushed red pepper flakes optional: Leave out if feeding kids or keep it for a gentle kick
• Salt and black pepper to taste: Season at every step to build layers of flavor
• 1/2 cup freshly grated Parmesan cheese: Fresh grated melts better and tastes brighter than the pre shredded stuff
• 2 tablespoons chopped fresh parsley: Makes it look like you put in way more effort than you actually did

Instructions

Build your flavor base:

Set the Instant Pot to Sauté mode and add a drizzle of oil. Cook the onion and bell pepper for 2 to 3 minutes until softened then add the garlic for just 30 seconds until fragrant.

Sear the chicken:

Add the chicken pieces and cook for 2 to 3 minutes until starting to brown. They do not need to cook through since they will finish under pressure.

Add the aromatics:

Stir in tomato paste Italian seasoning paprika and red pepper flakes if using. Season with salt and pepper to start building flavor.

Deglaze the pot:

Pour in the chicken broth and scrape up any browned bits from the bottom with a wooden spoon. Those little bits are where all the flavor lives.

Add tomatoes and pasta:

Stir in crushed tomatoes then spread spaghetti evenly over the top. Press down lightly into the liquid but do not stir.

Pressure cook:

Secure the lid and set to Manual or Pressure Cook on high for 7 minutes. This might seem short but pasta cooks fast under pressure.

Release the pressure:

Allow natural pressure release for 5 minutes then quick release the remaining pressure carefully.

Finish with cheese:

Gently stir everything together. The sauce will look loose but will thicken as it stands. Stir in Parmesan until melted and creamy.

Serve and garnish:

Taste and adjust seasoning if needed. Sprinkle with fresh parsley and serve while steaming hot.

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My neighbor smelled this cooking through our open kitchen window once and actually knocked on the door to ask what I was making. We ended up eating on the back porch with her family and now whenever I make it she texts me asking if there is extra.

Getting The Texture Right

The biggest mistake people make with Instant Pot pasta is stirring it before pressure cooking. Letting the spaghetti rest on top of the liquid rather than submerged keeps it from turning into a gummy clump. Trust the process.

Make It Your Own

Sometimes I toss in mushrooms or spinach right before pressure cooking if I have them wilting in the fridge. Chicken thighs work beautifully here too and stay juicier than breasts if you prefer dark meat.

What To Serve With It

A crisp green salad with a vinaigrette cuts through the richness perfectly. Garlic bread is basically mandatory and so easy to throw together while the pot does its thing.

• Set out extra Parmesan at the table because everyone will want more
• Keep red pepper flakes handy for the heat seekers
• Leftovers reheat beautifully for lunch the next day

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There is something deeply satisfying about pulling together a meal this comforting in barely any time at all.

Recipe Q&A

→ Do I need to cook the chicken before pressure cooking?

No, you only need to brown the chicken pieces for 2-3 minutes to develop flavor. They will finish cooking through during the pressure cooking cycle and remain tender and juicy.

→ Why shouldn't I stir the spaghetti into the liquid?

Keeping the spaghetti on top of the liquid prevents it from sticking together and ensures even cooking. The pasta will absorb the liquid and cook perfectly as it sits during pressure cooking.

→ Can I use other pasta shapes instead of spaghetti?

Yes, you can substitute with penne, rotini, or other short pasta shapes. Adjust cooking time to 6 minutes for smaller shapes and check for doneness after natural release.

→ Is the sauce supposed to be thin right after cooking?

Yes, the sauce will appear slightly saucy immediately after pressure cooking. It will thicken nicely as it sits for a few minutes before serving, which is normal for this method.

→ Can I make this without an Instant Pot?

You can adapt this for a Dutch oven or large pot. Brown ingredients on the stovetop, then simmer covered for 15-20 minutes until pasta is cooked and sauce has thickened, adding more broth if needed.

→ How do I store and reheat leftovers?

Store in an airtight container in the refrigerator for up to 4 days. Reheat gently on the stovetop with a splash of broth or water, adding more Parmesan to refresh the creamy texture.