Savory Instant Pot Chicken Spaghetti

I discovered this recipe during a chaotic Tuesday when I had zero energy but four hungry people staring at me expectantly. The Instant Pot had been gathering dust in the corner, and I decided to throw caution to the wind with chicken, spaghetti, and whatever crushed tomatoes I could find. Twenty minutes later, my kitchen smelled like an Italian grandmother had been cooking there all day, and my kids were actually fighting over seconds. That was the moment this pressure cooker became my weeknight secret weapon.

Last month, my sister came over after a terrible day at work, and I made this without even looking at the recipe. We stood in the kitchen eating straight from the pot with forks, talking and laughing until the spaghetti was gone. She texted me the next morning asking for the recipe because apparently, comfort food tastes better when someone else makes it for you.

Ingredients

• 2 large boneless skinless chicken breasts: Cutting them into bite-sized pieces helps them cook evenly and absorb more flavor
• 1 medium onion and 1 red bell pepper: These create the savory foundation that makes the sauce taste like it simmered for hours
• 3 cloves garlic: Minced fine because garlic burns quickly in the Instant Pot
• 1 can crushed tomatoes and 2 tablespoons tomato paste: The combination gives you body and deep tomato flavor in record time
• 250g uncooked spaghetti: Breaking it in half helps it fit and cook more evenly
• 3 cups low-sodium chicken broth: Low-sodium lets you control the seasoning since the sauce reduces
• Italian seasoning paprika and red pepper flakes: This trio creates that warm, comforting spice blend
• 1/2 cup freshly grated Parmesan cheese: Freshly grated melts better than pre-shredded and tastes infinitely better

Instructions

Build your flavor base:

Set your Instant Pot to Sauté mode, add a drizzle of oil, and cook your onion and bell pepper until they soften and smell sweet. Add the garlic for just 30 seconds because burned garlic tastes bitter and will ruin everything.

Give the chicken some color:

Toss in your chicken pieces and let them brown for a few minutes, stirring occasionally. They do not need to cook through, just get some golden edges that will deepen the final sauce.

Wake up the spices:

Stir in your tomato paste and spices until they become fragrant and coat everything nicely. This step blooming the spices is what makes your house smell incredible.

Deglaze and add liquid:

Pour in the chicken broth and use your wooden spoon to scrape up all those browned bits from the bottom. Those little bits are packed with flavor and you definitely want them in your sauce.

Layer in the tomatoes and pasta:

Add the crushed tomatoes, then arrange your spaghetti on top and press it gently into the liquid. Do not stir it yet or the pasta might stick to the bottom and burn.

Pressure cook to perfection:

Secure that lid and cook on high pressure for 7 minutes. Let it naturally release for 5 minutes before quick releasing the rest of the steam.

Bring it all together:

Gently stir everything and watch that sauce thicken right before your eyes. Stir in the Parmesan until it melts into creamy goodness, then taste and adjust the seasoning.

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This recipe has saved me so many times when unexpected guests showed up or I completely forgot to plan dinner. There is something magical about dumping ingredients in a pot and having them transform into something that tastes like you spent all day cooking. My husband still asks for this on Sunday nights when we want something cozy but do not want to spend hours in the kitchen.

Making It Your Own

I have learned that chicken thighs work beautifully here if you want darker meat with more flavor. The extra fat keeps everything moist and rich. Sometimes I throw in mushrooms or spinach during the last few minutes of pressure cooking, and they wilt perfectly into the sauce without getting mushy.

Serving Suggestions

A crisp green salad with a simple vinaigrette cuts through the richness of the pasta. Garlic bread is non-negotiable in my house because you need something to scoop up that extra sauce. My kids actually eat their vegetables when I serve roasted broccoli on the side with this dish.

Storage and Meal Prep

This recipe doubles beautifully and actually tastes even better the next day when the flavors have had time to mingle. I often make a big batch on Sunday for easy lunches throughout the week.

• The pasta will absorb more liquid as it sits, so add a splash of broth when reheating
• Store in airtight containers for up to 4 days in the refrigerator
• Freeze portions in individual containers for those nights when cooking is absolutely not happening

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There is nothing quite like the sound of that Instant Pot beep signaling that dinner is ready. This recipe has become my go-to for busy weeknights and lazy weekends alike, and I hope it brings the same comfort to your table.

Recipe Questions & Answers

→ Do I need to cook the spaghetti before adding it to the Instant Pot?

No, the spaghetti cooks directly in the pot with the liquids. Just break it in half, arrange it evenly over the sauce and broth, and press down lightly so it's submerged. The pressure cooking time is perfectly calculated to cook the pasta al dente.

→ Can I use chicken thighs instead of breasts?

Absolutely. Chicken thighs work beautifully and add extra richness. Boneless, skinless thighs can be cut into pieces just like breasts—adjust cooking time to 8 minutes instead of 7 if using thighs to ensure they're fully tender.

→ Why does the sauce look thin right after cooking?

The sauce may appear slightly saucy immediately after pressure release, but this is normal. As the pasta sits and absorbs liquid, the mixture thickens beautifully. Give it a few minutes before serving, or let it rest if you prefer a thicker consistency.

→ Can I add extra vegetables to this dish?

Certainly. Diced mushrooms, spinach, or zucchini can be added along with the bell peppers. For heartier vegetables like carrots or broccoli, add them with the chicken so they have enough time to soften during pressure cooking.

→ What size Instant Pot works best for this recipe?

A 6-quart or larger Instant Pot is ideal. The recipe creates enough liquid and food for a full batch without risking overflow during pressure cooking. If using a smaller 3-quart model, you may need to halve the ingredients.

→ How should I store and reheat leftovers?

Store in an airtight container in the refrigerator for up to 4 days. The pasta continues absorbing liquid, so the dish becomes thicker over time. Reheat with a splash of broth or water to restore creaminess, either in the microwave or on the stovetop over low heat.