Instant Pot Pasta with Sausage is the kind of weeknight dinner that saves the day without any stress. It is a hearty, flavor-packed one-pot meal that comes together in about 37 minutes, start to finish. As a busy home cook, I have made this on repeat because it genuinely delivers every single time.
I still remember the first night I threw this together after a long day with the kids. The kitchen smelled amazing, everyone sat down, and the plates were clean before I even had a chance to sit. That is when I knew this recipe had a permanent spot in our dinner rotation.
Instant Pot Pasta with Sausage is one of those meals that feels indulgent but is actually balanced and wholesome. The sausage adds richness, the marinara brings comfort, and the spinach sneaks in some greens without anyone complaining. It is filling, satisfying, and ridiculously easy to pull off on a weeknight. Your family will thank you!
Table of Contents
Ingredients for Instant Pot Pasta with Sausage
I have tested this recipe more times than I can count, and every ingredient here earns its spot. I always reach for a good-quality jarred marinara because it makes a big difference in the final flavor without adding any extra work.
- 2 tsp olive oil
- 1 lb Italian sausage, cooked or uncooked (chicken, turkey, or pork all work great) — I recommend chicken sausage for a lighter result that still has tons of flavor
- 1 small onion, chopped
- 2 bell peppers, chopped (any color works — I usually grab one red and one yellow for color)
- 3 cups water
- 1 tsp dried Italian seasoning
- 12 oz whole wheat penne pasta (about 4.5 cups dry) — My preference is whole wheat for the added fiber, but white penne works perfectly too
- 25 oz jar marinara sauce — In my experience, a marinara made with simple ingredients takes this dish to the next level
- 3 cups fresh spinach, coarsely chopped
- 2 oz shredded mozzarella cheese (about 0.5 cup)
Step-by-Step Instructions
In my experience, the key to this recipe is layering the ingredients correctly inside the Instant Pot. Resist the urge to stir after adding the pasta — this is what prevents a burn notice and keeps everything cooking evenly.
Step 1: Press the Saute function on your Instant Pot and add the olive oil. If using fully cooked sausage, slice it into rounds and add to the pot. If using uncooked sausage, remove from the casings and crumble it in. Add the chopped onion and cook, breaking up the sausage, until browned and the onion has softened. Press Cancel.
Step 2: Add the bell peppers, water, Italian seasoning, and 1 cup of the marinara sauce. Stir well and scrape up any browned bits from the bottom of the pot. This step is important — any stuck bits left behind can trigger a burn warning during pressure cooking.
Step 3: Add the penne pasta on top and press it into an even layer. Do not stir. Pour the remaining marinara sauce evenly over the pasta. Do not stir. The layering keeps the starchy pasta from scorching on the bottom.
Step 4: Close the lid and move the steam release valve to Sealing. Pressure cook on High based on your pasta package time: 2 minutes for a 6 to 9 minute package cook time; 3 minutes for a 10 to 12 minute package time; 4 minutes for a 13 or more minute package time. Note: pressurizing typically takes about 15 to 20 additional minutes before the cook time starts.
Step 5: When the timer ends, carefully quick release the pressure by moving the valve to Venting. Stand back slightly — steam releases fast. Once the float pin drops, open the lid.
Step 6: Stir the pasta. Any extra liquid will absorb as it rests for a minute or two. Stir in the chopped spinach, then the shredded mozzarella. Serve immediately while the cheese is still melty.
What to Serve with Instant Pot Pasta with Sausage
This pasta is hearty on its own, but the right sides can round out the meal with added freshness, crunch, or lightness. Here are some of the best sides for Instant Pot Pasta with Sausage.
Garlic Bread: A crusty slice of easy garlic bread soaks up the marinara perfectly and adds a satisfying crunch alongside the tender pasta.
Simple Green Salad: A light salad with romaine, cucumbers, and a lemon vinaigrette balances the richness of the sausage and cheese. If you want something more substantial, this Italian Grinder Salad Sandwich works beautifully as a side or starter.
Roasted Broccoli: Slightly caramelized edges and a mild bitterness contrast beautifully with the savory, cheesy pasta. You can also try this Garlic Roasted Vegetables recipe for an easy no-fuss side.
Homemade Cheesy Breadsticks: If your family loves bread with pasta night, these Homemade Cheesy Breadsticks are a crowd-pleaser that comes together fast and pairs perfectly with the marinara flavors in this dish.
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Creamy Broccoli Cheddar Orzo: For nights when you want a cozy double-carb situation (no judgment), this Creamy One-Pot Broccoli Cheddar Orzo makes an unexpectedly great companion dish for a larger family gathering.
Storage and Serving Tips
Store leftovers in an airtight container in the refrigerator for up to 4 days. The pasta does absorb more sauce as it sits, which actually makes it taste even richer the next day. Let it cool completely before sealing and storing.
To reheat, add a splash of water or broth and warm it on the stovetop over medium-low heat, stirring occasionally. The microwave works too — cover loosely and heat in 90-second intervals, stirring between each. I recommend adding a little extra liquid either way to bring the sauce back to life.
Pro tip: this dish freezes well for up to 2 months. Portion it into individual freezer-safe containers for grab-and-go weeknight meals. Thaw overnight in the fridge before reheating for best results.
Frequently Asked Questions
Can I use uncooked sausage in this recipe?
Yes, uncooked sausage works great. Just remove it from the casings, crumble it into the pot during the saute step, and cook it through before moving on. The Instant Pot will finish the job safely.
Why should I not stir the pasta after adding it?
Stirring the pasta into the sauce before pressure cooking raises the risk of a burn notice because the starchy pasta sits directly on the heated bottom of the pot. Keeping it layered on top lets the steam cook it evenly without scorching.
Can I make this recipe gluten-free?
Yes. Simply swap in your favorite gluten-free penne pasta. Adjust the pressure cook time based on the package directions for that specific pasta, and keep an eye on texture after the quick release since gluten-free pasta can go soft quickly.
Conclusion
Instant Pot Pasta with Sausage checks every box — it is fast, filling, family-friendly, and packed with flavor. Once you make it, it will earn a permanent spot in your weekly dinner rotation. Give it a try tonight and watch it disappear from the table before you can even grab seconds.
Instant Pot Pasta with Sausage
Ingredients
Equipment
Method
- Press the Saute function on the Instant Pot and add the olive oil. If using cooked sausage, slice into rounds. If using uncooked sausage, remove from casings and crumble into the pot. Add the chopped onion and cook, breaking up the sausage, until browned and onion is softened. Press Cancel.
- Add the bell peppers, water, Italian seasoning, and 1 cup of the marinara sauce. Stir well, scraping up any browned bits from the bottom of the pot to prevent a burn notice.
- Add the penne pasta on top and press into an even layer. Do not stir. Pour the remaining marinara sauce evenly over the pasta. Do not stir.
- Close the lid and move the steam release valve to Sealing. Pressure cook on High: 2 minutes for pasta with a 6 to 9 minute package cook time; 3 minutes for 10 to 12 minute package time; 4 minutes for 13 or more minute package time. Note: the pot will take about 15 to 20 minutes to pressurize before the cook time begins.
- When the cook time ends, carefully quick release the pressure by moving the valve to Venting. Stand back slightly as steam releases fast. Once the float pin drops, open the lid.
- Stir the pasta. Any extra liquid will absorb as it rests for a minute or two. Stir in the chopped spinach, then the shredded mozzarella. Serve immediately.
