Savory Instant Pot Chicken Spaghetti

The first time I made chicken spaghetti in the Instant Pot, I was absolutely convinced it would be a disaster. I had forgotten to defrost the chicken properly and was running late for dinner, so I just threw everything in and hoped for the best. When I opened that lid twenty minutes later, the smell that hit me made my roommate actually pause her Netflix show and wander into the kitchen. Now it is the meal I make when I need something that tastes like it simmered all day but actually took less time than watching an episode of television.

Last winter my sister came over after a terrible day at work, and I made this without really thinking about it. She took one bite and got completely quiet, then asked if I could teach her how to make something that felt so comforting without requiring any actual cooking skills. We ended up standing at the counter eating straight from the pot while she vented about her boss, and by the time we sat down to actually eat properly, half of it was already gone.

Ingredients

• 2 large boneless skinless chicken breasts: Cutting these into bite sized pieces before cooking helps them absorb flavor and cook evenly throughout the dish
• 1 medium onion and 1 red bell pepper: These aromatics build the foundation of flavor, so take the time to dice them finely for even distribution
• 3 cloves garlic: Freshly minced garlic makes such a difference compared to jarred, releasing its oils and perfume into the oil
• 1 can crushed tomatoes and 2 tablespoons tomato paste: The double tomato approach gives depth, with crushed tomatoes providing body and paste adding concentrated sweetness
• 250g uncooked spaghetti: Breaking the pasta in half before adding it makes everything easier to stir and serve later
• 3 cups low sodium chicken broth: Low sodium is crucial here since the pasta and cheese will add salt as they cook
• 1 teaspoon Italian seasoning and 1 teaspoon paprika: This spice blend creates that familiar comfort food flavor profile everyone recognizes
• 1/2 teaspoon crushed red pepper flakes: Even if you do not like heat, this tiny amount wakes up all the other flavors without making it spicy
• 1/2 cup freshly grated Parmesan cheese: Buy a wedge and grate it yourself if possible, the pre grated stuff has anti caking agents that prevent it from melting properly
• 2 tablespoons chopped fresh parsley: This bright pop of color and freshness makes the dish look finished and restaurant worthy

Instructions

Build your flavor base:

Set the Instant Pot to Sauté mode and add a drizzle of oil. Sauté the onion and bell pepper for 2-3 minutes until they start to soften and become fragrant. Add the garlic and cook for just 30 seconds, watching carefully so it does not burn and turn bitter.

Sear the chicken:

Add the chicken pieces to the pot and cook for 2-3 minutes, stirring occasionally until they develop some golden color on the outside. They will finish cooking under pressure, so do not worry about cooking them through at this stage.

Add the seasonings:

Stir in the tomato paste, Italian seasoning, paprika, and red pepper flakes if using. Season generously with salt and pepper, stirring constantly for about 30 seconds to toast the spices and bloom their flavors.

Deglaze the pot:

Pour in the chicken broth and use your spoon to scrape up any browned bits stuck to the bottom of the pot. These browned bits are packed with flavor and will dissolve back into the sauce.

Layer the ingredients:

Add the crushed tomatoes, then spread the spaghetti evenly over the top. Press the pasta down gently into the liquid without stirring, which helps prevent the dreaded burn notice on your Instant Pot.

Pressure cook:

Secure the lid and set the Instant Pot to Manual or Pressure Cook on high for 7 minutes. The pot will take several minutes to come to pressure before the timer starts counting down.

Release the pressure:

When the cooking cycle completes, allow a natural pressure release for 5 minutes. Then carefully switch to quick release to let out any remaining steam.

Finish and serve:

Gently stir everything together, watching as the sauce thicken slightly from the starch released by the pasta. Add the Parmesan cheese and stir until melted and creamy, then taste and adjust seasoning as needed. Serve immediately, garnished with fresh parsley.

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This recipe became my go to when my friend had her second baby and suddenly found herself with zero time for cooking but a family that still needed to eat. I taught her how to make it during one of those newborn fog afternoons, and she texted me later that night to say her husband actually asked if she had ordered takeout. That is the highest compliment a weeknight dinner can receive.

Making It Your Own

Once you have made this recipe a few times, you will start seeing all the little places where you can make it your own. Sometimes I throw in a handful of spinach during the last minute of pressure cooking, wilting it perfectly without dirtying another pan. Other times I add mushrooms when I sauté the vegetables, letting them brown and concentrate their flavor before adding the garlic. The beauty of this dish is how forgiving it is while still producing something that feels special.

Serving Suggestions

A crisp green salad with a bright vinaigrette cuts through the richness of the pasta and lightens up the whole meal. I usually serve garlic bread on the side because there is never enough bread to soak up that incredible sauce, and my family will literally fight over the last piece. For a weeknight, though, this pasta is substantial enough to stand on its own with just a simple side of steamed broccoli or roasted green beans.

Storage And Meal Prep

This recipe keeps beautifully in the refrigerator for up to four days, and the flavors actually develop and deepen over time. I often make a double batch on Sunday and portion it into glass containers for easy weekday lunches. When reheating, add a splash of water or broth to loosen the sauce, which will have thickened considerably in the fridge.

• The pasta continues to absorb liquid as it sits, so do not worry if it looks saucy immediately after cooking
• Freeze individual portions in freezer safe bags for up to three months, thawing overnight in the refrigerator before reheating
• If meal prepping, slightly undercook the pasta by 1-2 minutes so it does not become mushy when reheated

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There is something deeply satisfying about a dish that comes together so quickly but tastes like it required hours of attention and care. That is the magic of pressure cooking, and this recipe captures it perfectly.

Recipe FAQs

→ Can I use chicken thighs instead of breasts?

Yes, boneless skinless chicken thighs work beautifully and may add extra richness. Cut them into bite-sized pieces just like the breasts and follow the same cooking time.

→ Why should I break the spaghetti in half?

Breaking spaghetti in half makes it easier to stir and serve after pressure cooking. It also distributes more evenly throughout the pot for consistent cooking.

→ Can I add more vegetables?

Absolutely. Mushrooms, spinach, zucchini, or diced carrots all complement the flavors. Add heartier vegetables like mushrooms during the sauté step and tender greens like spinach after pressure cooking.

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

Yes, the dish will appear saucy immediately after pressure cooking. As it sits for a few minutes, the spaghetti continues to absorb liquid and the sauce naturally thickens to the perfect consistency.

→ Can I make this without an Instant Pot?

You can adapt this for stovetop by cooking the chicken and vegetables in a large Dutch oven, then adding broth, tomatoes, and spaghetti. Simmer covered for about 15-20 minutes until pasta is tender and sauce has thickened.

→ How long do leftovers keep?

Store in an airtight container in the refrigerator for up to 4 days. The pasta will continue absorbing sauce, so you may want to add a splash of broth when reheating.