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Creamy Baked Tortellini Casserole with Ground Beef and Mozzarella

Cheesy, creamy, and baked to bubbly perfection—this pasta bake is pure comfort in a dish! This cozy, family-friendly dinner combines cheese-stuffed tortellini, hearty ground beef, rich marinara sauce, and a splash of cream—all baked under a melty mozzarella topping. It’s the kind of dish that checks all the boxes: creamy, saucy, filling, and easy enough for a weeknight win.
Prep Time15 minutes
Cook Time30 minutes
Course: Dinner
Cuisine: American, Italian
Keyword: casserole, tortellini soup
Servings: 3
Author: Ruthy Kirwan

Equipment

  • 1 9"x13" Casserole Dish

Ingredients

  • 1 lb ground beef
  • 1 small yellow onion diced
  • 2 cloves garlic minced
  • 1 24 oz jar marinara sauce
  • ½ cup heavy cream
  • 1 20 oz package refrigerated or frozen cheese tortellini
  • 2 cups shredded mozzarella cheese
  • 1 tablespoon olive oil
  • 1 teaspoon Italian seasoning
  • Salt and pepper to taste
  • Optional: chopped fresh basil or parsley for garnish

Prep Ahead:

  • Make the creamy beef and marinara sauce by following instructions 2-8 in “Make From Fresh”
  • Store in an airtight container in the fridge for up to 5 days.

Prepare From Prepped:

  • Preheat the oven to 375*F. Lightly grease a 9”x13” baking dish or large casserole dish.
  • Place the cheese tortellini on the bottom of the dish and top with the creamy beef and marinara sauce stirring gently to combine.
  • Top evenly with mozzarella cheese and cover with foil.
  • Bake for 20 minutes.
  • Uncover and bake another 8–10 minutes until the cheese is melted and bubbly.
  • Let rest for 5 minutes before serving.
  • Top with chopped parsley or basil if desired.

Make From Fresh:

  • Preheat oven to 375°F 190°C. Lightly grease a 9x13” baking dish or large casserole dish.
  • Heat olive oil in a large skillet over medium heat.
  • Add onion and cook for 3–4 minutes until softened.
  • Stir in garlic and cook for 30 seconds more.
  • Add ground beef and Italian seasoning. Cook the beef crumbling it with a wooden spoon or meat chopper, until it has browned and cooked through.
  • Drain excess grease if needed.
  • Reduce heat to low and stir in marinara sauce and heavy cream until combined.
  • Let it simmer for 3-5 minutes stirring occasionally. Taste and adjust seasoning if needed.
  • While the sauce is simmering bring a salted pot of water to a boil.
  • Add the tortellini and cook 5 minutes until just before they’re cooked all the way through.
  • Drain the water from the tortellini and transfer it to the bottom of the casserole dish.
  • Top with the creamy beef and marinara sauce and stir gently to combine.
  • Sprinkle mozzarella evenly over the top.
  • Cover with foil and bake for 20 minutes.
  • Uncover and bake another 8–10 minutes until the cheese is melted and bubbly.
  • Let rest for 5 minutes before serving.
  • Top with chopped parsley or basil if desired.

Notes

Storage & Reheating
  • Fridge: Store leftovers in an airtight container for up to 4 days.
  • Freezer: Assemble (but don’t bake), cover tightly, and freeze for up to 2 months.
  • Reheat: Warm in a 350°F oven or microwave individual portions until hot.