Cheesy Italian Sausage & Tortellini Bake

Cheesy Italian sausage and tortellini bake with creamy marinara sauce, melted mozzarella, and parmesan in a 9x13 baking dish.

Cheesy Italian Sausage & Tortellini Bake

This Cheesy Italian Sausage & Tortellini Bake is rich, creamy, cheesy comfort food at its best. Savory Italian sausage is browned with onions, garlic, and tomato paste, then simmered in a silky marinara cream sauce before being tossed with tender cheese tortellini. Finished with gooey mozzarella and parmesan and baked until bubbly and golden, this easy pasta bake tastes like cozy Italian-American restaurant comfort food right at home.

Course Casserole, dinner, Family Meal, Main Course, Pasta Bake

Cuisine American Comfort Food, Italian-Inspired, Pasta Dishes

Keyword 30 minute dinner, baked tortellini, cheesy Italian sausage tortellini bake, cheesy pasta bake, comfort food pasta, creamy sausage pasta, creamy tomato tortellini, easy pasta bake, family dinner recipe, hearty pasta recipes, Italian sausage casserole, one pan pasta recipe, oven baked tortellini, sausage marinara bake, sausage tortellini pasta bake, tortellini casserole, weeknight dinner ideas

Prep Time 15

Cook Time 27

Total Time 42

Servings 6 servings

Calories 650kcal

Cost $22 for the entire recipe

Equipment

Large skillet or sauté pan
Wooden spoon or spatula
Cutting board
Chef’s knife
Measuring cups and spoons
9×13 baking dish
Mixing spoon or ladle
Oven mitts
Aluminum foil (optional, for covering if needed)

Ingredients

Pasta Bake

1 pound pork Italian sausage
1 cup diced onion
3–4 garlic cloves minced
1 tablespoon tomato paste
1 jar 24 ounces smooth marinara sauce
3/4 cup heavy cream
1/2 cup chicken broth
1 teaspoon Italian seasoning
1/2 teaspoon dried basil
1/2 teaspoon red pepper flakes
1 teaspoon balsamic vinegar optional
Black pepper to taste
Salt only if needed
20 ounces refrigerated cheese tortellini

Cheese Layer

3/4 cup shredded low-moisture whole milk mozzarella cheese
1/2 cup shredded mozzarella cheese
1/3 cup freshly grated parmesan cheese

Optional Add-Ins

Whole milk ricotta cheese
Fresh spinach
Pesto drizzle
Fresh basil
Fresh parsley
Toasted breadcrumbs

Instructions

Cook the Sausage

Preheat oven to 375°F.
Heat a large skillet over medium-high heat. Add the Italian sausage and cook until deeply browned and caramelized, breaking it apart as it cooks.
Drain excess grease if needed, leaving about 1 tablespoon of fat in the pan.
Add diced onion and cook until softened and lightly golden, about 4–5 minutes.
Stir in garlic and cook for 30–45 seconds until fragrant.
Add tomato paste and cook until slightly darkened and fragrant, about 1 minute.

Make the Sauce

Pour in marinara sauce and chicken broth. Stir well to combine.
Reduce heat to low and stir in heavy cream.
Add Italian seasoning, dried basil, red pepper flakes, black pepper, and optional balsamic vinegar.
Simmer gently for 3–5 minutes until slightly thickened. The sauce should still look slightly loose before baking.
Taste the sauce before adding any salt since the sausage, parmesan, marinara, and tortellini already contain salt.
If using spinach, fold it into the sauce just until wilted.

Add the Tortellini

Fold the refrigerated tortellini gently into the sauce until evenly coated and lightly warmed through. Avoid over-stirring to prevent tearing the tortellini.

Assemble the Bake

Lightly grease a 9x13 baking dish.
Transfer the tortellini mixture into the baking dish.
Stir 3/4 cup mozzarella into the pasta mixture for extra creaminess.
If using ricotta, add small dollops throughout the dish.
Top with remaining mozzarella cheese, then lightly sprinkle parmesan over the top.

Bake

Place the baking dish on the center oven rack.
Bake uncovered for 18–22 minutes, or until the center is hot and bubbling and the cheese is fully melted.
For extra browning, broil briefly while watching closely.
If desired, sprinkle toasted breadcrumbs on top during the final 5 minutes of baking.

Serve

Let the tortellini bake rest for 8–10 minutes before serving so the sauce can thicken slightly.
Top with fresh basil, parsley, or pesto drizzle before serving.

Notes

🍝 Refrigerated Tortellini Works Best

This Cheesy Italian Sausage & Tortellini Bake turns out best with refrigerated cheese tortellini instead of dried tortellini. Refrigerated tortellini cooks quickly, stays tender, and absorbs the creamy marinara sauce beautifully while baking. Avoid overcooking the tortellini on the stovetop since it continues cooking in the oven.

🥩 Brown the Sausage Deeply for More Flavor

Deeply browned Italian sausage creates a much richer and more savory flavor base. Let the sausage caramelize slightly before adding the onions to develop deeper flavor and texture throughout the pasta bake. Pork Italian sausage provides the most classic Italian-American flavor, while spicy sausage adds extra heat and richness.

🍅 Smooth Marinara Creates the Creamiest Sauce

Smooth marinara sauces blend more evenly with cream and cheese, creating a silky baked tortellini sauce. Chunky sauces can sometimes make the casserole texture slightly uneven or watery. If your marinara tastes overly acidic, a small splash of balsamic vinegar helps balance the creamy sauce perfectly.

🧀 Freshly Shredded Cheese Melts Better

Freshly shredded low-moisture whole milk mozzarella creates the best gooey cheese pull and smooth melted topping. Pre-shredded cheese contains anti-caking agents that can affect melting and texture. Fresh parmesan also adds a nuttier, richer flavor than shelf-stable grated parmesan.

🥄 Keep the Sauce Slightly Loose Before Baking

The sauce should still look slightly loose before the pasta bake goes into the oven. Tortellini absorbs liquid as it cooks, and the melted cheese thickens the sauce further during baking and resting. If the sauce becomes too thick before baking, add a splash of broth or cream to loosen it slightly.

✨ Ricotta Adds Creamy Lasagna-Style Texture

Whole milk ricotta adds delicious creamy pockets throughout the casserole and gives the dish a more luxurious lasagna-style texture. Add small dollops throughout the pasta instead of spreading it across the entire top for the best balance.

🌿 Easy Flavor Add-Ins

This creamy tortellini bake is easy to customize with extra ingredients and toppings. Fresh spinach, sautéed mushrooms, pesto drizzle, toasted parmesan breadcrumbs, or fresh basil all work beautifully with the creamy tomato sauce and Italian sausage flavors.

🔥 Let the Pasta Bake Rest Before Serving

Allow the tortellini bake to rest for 8–10 minutes before serving. Resting helps the sauce thicken slightly, allows the cheese to settle, and improves the overall texture and structure of the casserole.

🥡 Leftovers Reheat Beautifully

This baked tortellini recipe reheats very well for easy lunches or dinners later in the week. Reheat leftovers covered with foil and add a splash of broth or cream to keep the sauce creamy, smooth, and rich.