Baked Ziti with Italian Sausage

The onion turns soft and sweet in the skillet before the sausage goes in, and that’s when the kitchen starts to smell like a proper Sunday sauce. I let the…

By Ava
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November 14, 2026
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Reading time: 10 min

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The onion turns soft and sweet in the skillet before the sausage goes in, and that’s when the kitchen starts to smell like a proper Sunday sauce. I let the sausage brown in little pieces instead of rushing it; those browned edges give the tomato sauce a deeper, savory start. This baked ziti with Italian sausage is hearty without being complicated, with a rich sauce, tender pasta, and a creamy layer of ricotta tucked through the middle.

I keep the ricotta in a separate mixture with egg, Parmesan, and parsley, then dollop it between two layers of sauced pasta. That gives you creamy pockets in every serving instead of a pan where the cheese disappears into the sauce. Low-moisture mozzarella on top melts into a golden, bubbling lid, while the ziti underneath stays distinct and easy to scoop.

Why the Ricotta Belongs in the Middle, Not Mixed Through

It’s easy to stir ricotta straight into the pasta, but that changes the texture of the whole casserole. Mixed in, the ricotta gets diluted by tomato sauce and coats the noodles in a mild, creamy layer. Here, it stays in soft pockets between the pasta, so each serving has both the bright tomato-and-sausage sauce and a distinct, gentle cheese filling.

The layering also gives the ricotta a little room to hold its shape as the dish bakes. The egg helps bind the cheese mixture, and Parmesan adds a salty, savory edge that keeps it from tasting flat beside the sausage. Don’t worry about spreading the filling into a perfectly even sheet; evenly spaced spoonfuls are enough. The pasta above and below will settle around it in the oven, and you’ll get a mix of creamy and saucy bites instead of one uniform texture.

That contrast is what makes this casserole feel more considered than pasta and sauce with melted cheese on top. You still get the familiar browned mozzarella surface, but underneath it there are layers to discover with every serving.

What the Sausage, Two Tomatoes, and Ricotta Each Bring

• Italian sausage — Mild sausage keeps the sauce savory without much heat; hot sausage gives the whole pan a noticeable kick. Either works, and removing the casings makes it easier to break the meat into small pieces as it browns.
• Crushed tomatoes and tomato sauce — Crushed tomatoes bring texture, while tomato sauce smooths out the base so it clings to the pasta. Standard canned tomatoes work well here; there’s no need to spend extra on a specialty brand. If you’re out of tomato sauce, blend an equal quantity of crushed tomatoes until smooth for a close pantry substitute.
• Ziti — The short tubes catch sauce inside and out, which makes them a good fit for a layered bake. Penne is the simplest swap if ziti isn’t available; use the same quantity and cook it for one minute less than its package directions.
• Whole-milk ricotta, egg, Parmesan, and parsley — Whole-milk ricotta gives the center a fuller, creamier texture than a leaner version. The egg helps the filling hold together, Parmesan brings savory depth, and fresh parsley keeps the mixture from tasting heavy. If you need a ricotta substitute, blend cottage cheese until smooth and use it in the same quantity; the filling will be a little tangier and less dense.
• Low-moisture mozzarella — This melts across the top without adding as much moisture as fresh mozzarella, so the finished surface browns instead of turning watery. A store-brand block or bag is fine; the low-moisture style matters more than choosing a premium brand.

Building the Sauce and Layers for a Sturdy Baked Ziti

Soften the Onion and Brown the Sausage

Heat the oven to 375°F and coat a 9×13-inch baking dish lightly with nonstick cooking spray. In a 12-inch skillet, warm the olive oil over medium heat, then cook the diced onion for 4 to 5 minutes until softened. Add the sausage and break it into small pieces as it cooks for 6 to 8 minutes; look for browned edges and no large raw-looking clumps. Stir in the minced garlic for 30 seconds, just until fragrant, so it doesn’t scorch while the meat finishes.

Let the Tomato Sauce Simmer Uncovered

Stir in the crushed tomatoes, tomato sauce, oregano, dried basil, kosher salt, and black pepper. Bring the mixture to a simmer, then leave it uncovered for 15 to 20 minutes, stirring from time to time. The surface should bubble gently rather than splash hard, and the sauce should look cohesive instead of thin and watery. If it sticks around the edge of the skillet, lower the heat so it can keep reducing without scorching.

Keep the Pasta Firm and Mix the Filling

Bring a large pot of water to a boil, stir in the kosher salt for the cooking water and the ziti, and cook the pasta for one minute less than the package directions. That small head start matters because the noodles continue cooking in the oven; pasta that’s already soft in the pot can turn mushy in the casserole. Drain the ziti well. In a medium bowl, stir together the ricotta, egg, Parmesan, and chopped parsley until the mixture is evenly combined.

Layer the Pasta Around the Ricotta

Toss the drained ziti with the sausage sauce until the noodles are coated. Spread half of the sauced pasta in the prepared baking dish, then add spoonfuls of the ricotta mixture evenly over it. Add the remaining pasta on top, taking care not to mash the filling into the bottom layer. Finish with the shredded mozzarella spread across the surface.

Bake Until Bubbling at the Center

Cover the dish tightly with foil and bake for 20 minutes. Uncover and continue baking for 10 to 15 minutes, until the cheese is melted, the sauce is bubbling, and the center reaches 160°F. If the edges bubble before the middle is hot, give it the full baking time and check the center rather than relying on the color of the top alone. Lift the foil carefully so steam escapes away from your hands, then serve after the short rest noted above.

Two Practical Ways to Adapt This Sausage Ziti

Questions That Come Up Before the Ziti Goes in the Oven

Baked Ziti with Italian Sausage

Baked ziti with Italian sausage layers ziti tossed in a simmered tomato sauce with creamy ricotta and melted mozzarella. Baked in a 9x13-inch dish until bubbling, it rests briefly before serving.

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Prep Time 20 minutes mins

Cook Time 1 hour hr 12 minutes mins

resting 10 minutes mins

Total Time 1 hour hr 42 minutes mins

Servings: 8 servings

Course: Dinner

Cuisine: Italian

Calories: 620

Ingredients Equipment Method Notes

Ingredients

  

For the baking dish

• 1 nonstick cooking spray as needed

For the sausage sauce

• 1 tbsp olive oil
• 1 yellow onion medium, diced
• 1 lb Italian sausage mild or hot, casings removed if needed
• 3 cloves garlic minced
• 1 can (28 oz) crushed tomatoes
• 1 can (15 oz) tomato sauce
• 1 tsp dried oregano
• 0.5 tsp dried basil
• 0.5 tsp kosher salt
• 0.25 tsp black pepper

For the pasta

• 1 tbsp kosher salt for the cooking water
• 1 lb ziti

For the cheese mixture

• 1 container (15 oz) whole-milk ricotta cheese
• 1 egg large
• 0.5 cup Parmesan cheese grated
• 2 tbsp fresh parsley chopped

For assembling

• 8 oz mozzarella low-moisture, shredded (about 2 cups)

Equipment

• 1 9x13-inch baking dish
• 1 12-inch skillet

Method

 

Prepare the baking dish

1. Heat the oven to 375°F and lightly coat a 9x13-inch baking dish with nonstick cooking spray.

Make the sausage sauce

1. Heat the olive oil in a 12-inch skillet over medium heat, add the onion, and cook for 4 to 5 minutes until softened.
2. Add the sausage and cook for 6 to 8 minutes, breaking it into small pieces, until browned; stir in the garlic and cook for 30 seconds.
3. Stir in the crushed tomatoes, tomato sauce, oregano, basil, 1/2 teaspoon salt, and pepper; bring to a simmer and cook uncovered for 15 to 20 minutes, stirring occasionally.

Cook the pasta

1. Bring a large pot of water to a boil, stir in the tablespoon of salt and ziti, and cook for 1 minute less than the package directions; drain.

Mix the cheese mixture

1. Stir together the ricotta, egg, Parmesan, and parsley in a medium bowl until combined.

Assemble and bake

1. Toss the drained ziti with the sausage sauce, then spread half in the prepared dish and dollop the ricotta mixture evenly over it.
2. Add the remaining ziti, top with the mozzarella, cover the dish tightly with foil, and bake for 20 minutes; uncover and bake for 10 to 15 minutes more, until bubbling and the center reaches 160°F.
3. Let the baked ziti rest for 10 minutes before serving.

Notes

For the best texture, cook the ziti for 1 minute less than the package directions. Refrigerate leftovers for 3 to 4 days; freeze yes. Use gluten-free ziti for a gluten-free option.