Instant Pot Baked Ziti
Comfort food that feels like a warm hug—this Instant Pot Baked Ziti is creamy, cheesy, and comes together faster than the oven-baked version. With savory Italian-seasoned sausage, a rich tomato sauce, and gooey mozzarella, it’s a crowd-pleaser for weeknights, potlucks, or whenever you want pasta that tastes like it slow-simmered all afternoon. The pressure cooker keeps everything moist while infusing the ziti with sauce, and you get that melty cheese finish without babysitting a casserole for an hour.
Why you’ll love this recipe
- Speed: The pressure cooker cuts the cooking time drastically compared with baking.
- Simplicity: One pot on the stove and then the Instant Pot—minimal dishes, maximum flavor.
- Texture: The ziti cooks through in the sauce so every bite is saucy and tender, with a cheesy top that browns under the broiler if you like.
- Family-friendly: Mild or spicy sausage lets you control the heat; swap in a milder sausage for kids or a spicier one for adults.
Ingredients
- 1 tablespoon olive oil
- 1 lb mild or spicy Italian sausage, casings removed
- 1 medium onion, chopped
- 2 cloves garlic, minced
- 1 teaspoon dried Italian seasoning
- 1 teaspoon dried oregano
- ½ teaspoon kosher salt
- ¼ teaspoon black pepper
- 24 oz. crushed tomatoes
- 15 oz can diced tomatoes with juices
- 2 tablespoons tomato paste
- 1 lb ziti pasta
- 2 cups water
- 2 cups shredded mozzarella cheese
- ¾ cup ricotta cheese
Notes on ingredients
For the sausage, use your preferred mild or spicy Italian sausage with the casings removed for easy browning and even distribution through the sauce. The two forms of tomatoes—crushed and diced—give body and chunks for texture. If you prefer a smoother sauce, a quick pulse with an immersion blender after cooking will do the trick. The ziti shape holds sauce well, but if you only have penne on hand, it will work as a substitute. Keep the cheese on hand: the ricotta adds a creamy lift while mozzarella gives that irresistible stretch.
Equipment
- Instant Pot or electric pressure cooker (6-quart recommended)
- Spoon or spatula for stirring
- Measuring cups and spoons
- Optional: broiler-safe dish if you prefer a browned top
Step-by-step directions
- Set your Instant Pot to the Saute setting and add 1 tablespoon olive oil. Allow the oil to heat briefly until shimmering.
- Add 1 lb mild or spicy Italian sausage (casings removed) to the pot. Break the sausage apart with a spatula or spoon and cook, stirring occasionally, until it’s browned and no longer pink, about 5–7 minutes. Use a flat spoon to press the sausage into the pot to encourage even browning.
- Add 1 medium onion, chopped, to the browned sausage. Sauté together for about 3 minutes, stirring occasionally, until the onion softens and becomes translucent.
- Add 2 cloves garlic, minced, and cook with the sausage and onion for 30–45 seconds, stirring constantly, until the garlic becomes fragrant but not browned.
- Sprinkle in 1 teaspoon dried Italian seasoning, 1 teaspoon dried oregano, ½ teaspoon kosher salt, and ¼ teaspoon black pepper. Stir well to coat the sausage and aromatics, letting the dried herbs bloom for about 20–30 seconds while sautéing.
- Pour in 24 oz. crushed tomatoes and the 15 oz can diced tomatoes with juices. Stir to combine with the meat and aromatics so the sauce becomes uniform.
- Stir in 2 tablespoons tomato paste, working it into the sauce to thicken and deepen the tomato flavor.
- Pour 2 cups water into the Instant Pot and stir again, scraping any browned bits from the bottom of the pot so nothing sticks and triggers a burn notice.
- Add 1 lb ziti pasta directly into the sauce mixture. Press the pasta down gently with a spoon so it is mostly submerged; do not stir vigorously once the pasta is in place. The noodles should be arranged to lie in the sauce as evenly as possible.
- Secure the Instant Pot lid and set the valve to the Sealing position. Cook on High Pressure for 5 minutes. The short pressure-cook time lets the pasta finish tender in the sauce without turning mushy.
- When the cook time ends, perform a Quick Release by carefully turning the valve to Venting to release remaining pressure. Once the pin drops and the lid unlocks, open the pot.
- Stir the pasta and sauce gently to combine. If there is excess liquid, stir for a minute to let the sauce thicken slightly; residual heat will help the sauce cling to the noodles.
- Remove about half of the mixture and set it aside briefly. Dollop ¾ cup ricotta cheese across the top of the remaining pasta in the pot, then sprinkle 2 cups shredded mozzarella cheese evenly over everything. Return the reserved portion and fold gently to distribute the cheeses into the ziti, creating pockets of creamy ricotta and melted mozzarella throughout. If you prefer a fully mixed casserole, fold until the cheeses are evenly incorporated.
- Set the Instant Pot to Keep Warm for 2–3 minutes to allow the cheeses to melt into the pasta. If you want a browned, bubbly top, transfer the ziti to a broiler-safe dish, sprinkle a little extra mozzarella, and broil for 2–3 minutes until the top is golden. Watch closely so it doesn’t burn.
- Let the dish rest for 5 minutes before serving to allow the sauce to set slightly. Serve hot, garnished with extra mozzarella or a sprinkle of dried oregano if desired.
Serving suggestions
Serve this Instant Pot Baked Ziti with a simple green salad and crusty bread to sop up any extra sauce. A crisp Caesar, lemony arugula, or mixed greens with balsamic vinaigrette all pair beautifully. For a lighter option, add a side of roasted vegetables—broccoli or asparagus drizzled with olive oil and a squeeze of lemon complement the richness of the cheese and sausage.
Make-ahead and storage
To make this ahead, cook the ziti through step 11, let it cool, then refrigerate in an airtight container for up to 3 days. Reheat in the oven at 350°F (175°C) covered for 15–20 minutes or until warmed through. You can also reheat individual portions in the microwave. Leftovers keep well for up to 3 days and the flavors meld nicely overnight—just add a splash of water or tomato sauce when reheating if the pasta appears dry.
Tips for success
- Brown the sausage well—those fond bits add serious flavor to the sauce. Scrape the pot bottom when you add liquids to avoid a burn notice.
- Don’t overcook the pasta. Following the 5-minute high-pressure time and quick release yields noodles that hold their shape without turning to mush.
- If your pot shows excess liquid when the lid opens, stir and let it sit a minute or two; the sauce will thicken as it cools slightly.
- To vary the cheese profile, swap half the mozzarella for provolone or add a sprinkle of Parmesan before serving for a salty punch.
Flavor variations
Want to switch things up? Stir in a handful of chopped spinach after pressure cooking for extra color and nutrition. Add red pepper flakes with the dried herbs for a spicier kick. Swap ziti for rigatoni or penne if that’s what you have on hand—the cooking time remains the same in the Instant Pot for similar shapes.
Frequently asked questions
Can I use ground beef or turkey instead of sausage? Yes—substitute 1 lb ground beef or turkey and brown it the same way. Season the meat more generously if you prefer a stronger Italian flavor.
Is it okay to skip the ricotta? You can omit the ricotta for a simpler, cheesier bake with just mozzarella, but the ricotta adds a lovely creamy contrast that balances the tomato and sausage.
Can I make this vegetarian? For a vegetarian version, use a plant-based Italian sausage or omit the meat and add extra vegetables like mushrooms and bell peppers. Increase the seasoning slightly to make up for the missing sausage flavor.
Final thoughts
This Instant Pot Baked Ziti is a reliable weeknight winner: fast, comforting, and loaded with cheesy, saucy goodness. It’s an easy formula—brown the sausage, build the sauce, pressure-cook the pasta, and fold in the cheeses—that produces a classic pasta bake texture and flavor in a fraction of the time. Whether you’re feeding a family, hosting friends, or preparing meals for the week, this recipe hits the sweet spot between convenience and craveable flavor.
Ready to make it tonight? Gather your ingredients, fire up the Instant Pot, and in under an hour you’ll have bubbling, creamy ziti that tastes like it spent the whole day in the oven.
Instant Pot Baked Ziti
Ingredients
Equipment
Method
- Ensure the Instant Pot has the stainless steel insert in place.
- Press the Saute setting and heat the olive oil in the insert until shimmering.
- Add the chopped onion and minced garlic and saute until the onion is nearly translucent, about 3–4 minutes.
- Stir in the dried Italian seasoning and oregano.
- Add the Italian sausage (casings removed) and cook, breaking it up with a wooden spoon, until no longer pink and browned bits form on the bottom, about 5 minutes.
- Press Cancel/Off. Add 1/4 cup water and scrape the browned bits from the bottom to deglaze the pot.
- Add the ziti and 2 cups water, stirring to combine and distribute the pasta evenly.
- Pour the diced tomatoes with their juices over the pasta, then add the tomato paste and crushed tomatoes. Do not stir.
- Close the lid and set the valve to Sealing. Select Manual (or Pressure Cook) and set the timer to 6 minutes.
- When the cook time ends, press Cancel/Off and quickly release the pressure by switching the valve to Venting. Carefully open the lid.
- Stir in the shredded mozzarella and ricotta until the sauce is creamy and the cheese is melted.
- Season to taste with kosher salt and black pepper, then serve.
Notes
- Nutrition values vary by product used.
- You can substitute penne for ziti.
- Use ground beef or choose sausage spiciness to taste.
