Protein Packed Beef Tortellini Casserole – Comforting, Hearty, and Weeknight Easy

This casserole brings together meaty flavor, cheesy pockets of tortellini, and a creamy, tomato-rich sauce that feels like a hug after a long day. It’s simple enough for a weeknight but satisfying enough to serve to friends. You’ll cook everything in one pan before baking, so cleanup stays manageable.

The best part is the protein boost from lean ground beef, Greek yogurt, and cheese-packed pasta. If you love cozy dinners that don’t take all night, this one belongs in your rotation.

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Protein Packed Beef Tortellini Casserole - Comforting, Hearty, and Weeknight Easy

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Prep Time 15 minutes mins

Cook Time 30 minutes mins

Total Time 45 minutes mins

Servings: 6 servings

Ingredients Method

Ingredients

  

• 1 pound lean ground beef (90% lean or higher)
• 1 yellow onion, diced
• 3 cloves garlic, minced
• 1 teaspoon kosher salt, plus more to taste
• 1/2 teaspoon black pepper
• 1 teaspoon dried Italian seasoning (or equal parts dried basil and oregano)
• 1/2 teaspoon crushed red pepper flakes (optional)
• 24 ounces marinara sauce (your favorite jarred or homemade)
• 1/2 cup low-sodium beef broth (or water)
• 1/2 cup plain Greek yogurt (2% or whole milk)
• 1/2 cup part-skim ricotta (optional for extra creaminess)
• 18–20 ounces refrigerated cheese tortellini
• 1 cup shredded part-skim mozzarella
• 1/4 cup grated Parmesan
• 2 tablespoons chopped fresh parsley or basil (for garnish)
• 1 tablespoon olive oil (if needed for sautéing)
• Nonstick spray (for the baking dish)

Method

 

1. Preheat and prep. Heat the oven to 375°F (190°C). Lightly coat a 9x13-inch baking dish with nonstick spray.
2. Brown the beef. Warm a large skillet over medium-high heat. Add the ground beef and break it up with a spatula. Cook until no pink remains, 5–7 minutes. If the pan is dry, add a splash of olive oil.
3. Sauté aromatics. Add the diced onion and a pinch of salt. Cook until softened and lightly golden, 4–5 minutes. Stir in the garlic and cook 30 seconds, until fragrant.
4. Season the sauce. Sprinkle in Italian seasoning, black pepper, and red pepper flakes (if using). Pour in the marinara and beef broth. Stir and bring to a gentle simmer for 3–4 minutes to meld flavors. Taste and adjust salt.
5. Add the creaminess. Reduce heat to low. Stir in the Greek yogurt and ricotta until the sauce turns silky and pinkish. Keep it below a simmer so the dairy doesn’t split.
6. Fold in the tortellini. Add the refrigerated tortellini directly to the sauce. Stir to coat evenly. The pasta will finish cooking in the oven.
7. Assemble the casserole. Transfer the mixture to the prepared baking dish. Top evenly with mozzarella and Parmesan.
8. Bake. Cover loosely with foil (tent so cheese doesn’t stick). Bake for 15 minutes, then remove foil and bake another 10–12 minutes, until the cheese is melted and bubbling and the edges are lightly browned.
9. Rest and garnish. Let the casserole rest 5–10 minutes to set. Sprinkle with chopped parsley or basil before serving.
10. Serve. Scoop generous portions and pair with a crisp salad or steamed veggies for balance.

What Makes This Special

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This casserole blends the classic appeal of baked pasta with smart, high-protein swaps that don’t sacrifice flavor. Using lean ground beef keeps things hearty while trimming excess fat.

Instead of heavy cream, a little Greek yogurt adds creaminess and tang with extra protein. Store-bought cheese tortellini brings rich, melty pockets without extra prep. A crisp, bubbly layer of mozzarella and Parmesan seals the deal.

Shopping List

• 1 pound lean ground beef (90% lean or higher)
• 1 yellow onion, diced
• 3 cloves garlic, minced
• 1 teaspoon kosher salt, plus more to taste
• 1/2 teaspoon black pepper
• 1 teaspoon dried Italian seasoning (or equal parts dried basil and oregano)
• 1/2 teaspoon crushed red pepper flakes (optional)
• 24 ounces marinara sauce (your favorite jarred or homemade)
• 1/2 cup low-sodium beef broth (or water)
• 1/2 cup plain Greek yogurt (2% or whole milk)
• 1/2 cup part-skim ricotta (optional for extra creaminess)
• 18–20 ounces refrigerated cheese tortellini
• 1 cup shredded part-skim mozzarella
• 1/4 cup grated Parmesan
• 2 tablespoons chopped fresh parsley or basil (for garnish)
• 1 tablespoon olive oil (if needed for sautéing)
• Nonstick spray (for the baking dish)

Step-by-Step Instructions

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1. Preheat and prep. Heat the oven to 375°F (190°C).

   Lightly coat a 9×13-inch baking dish with nonstick spray.

2. Brown the beef. Warm a large skillet over medium-high heat. Add the ground beef and break it up with a spatula. Cook until no pink remains, 5–7 minutes.

   If the pan is dry, add a splash of olive oil.

3. Sauté aromatics. Add the diced onion and a pinch of salt. Cook until softened and lightly golden, 4–5 minutes. Stir in the garlic and cook 30 seconds, until fragrant.
4. Season the sauce. Sprinkle in Italian seasoning, black pepper, and red pepper flakes (if using).

   Pour in the marinara and beef broth. Stir and bring to a gentle simmer for 3–4 minutes to meld flavors. Taste and adjust salt.

5. Add the creaminess. Reduce heat to low.

   Stir in the Greek yogurt and ricotta until the sauce turns silky and pinkish. Keep it below a simmer so the dairy doesn’t split.

6. Fold in the tortellini. Add the refrigerated tortellini directly to the sauce. Stir to coat evenly.

   The pasta will finish cooking in the oven.

7. Assemble the casserole. Transfer the mixture to the prepared baking dish. Top evenly with mozzarella and Parmesan.
8. Bake. Cover loosely with foil (tent so cheese doesn’t stick). Bake for 15 minutes, then remove foil and bake another 10–12 minutes, until the cheese is melted and bubbling and the edges are lightly browned.
9. Rest and garnish. Let the casserole rest 5–10 minutes to set.

   Sprinkle with chopped parsley or basil before serving.

10. Serve. Scoop generous portions and pair with a crisp salad or steamed veggies for balance.

How to Store

• Refrigerate: Cool completely, then store in an airtight container for up to 4 days.
• Freeze: Portion into freezer-safe containers. Freeze up to 2 months for best quality.
• Reheat: Microwave individual portions in 60–90 second bursts, stirring halfway. For larger amounts, cover with foil and bake at 325°F (165°C) until hot, about 20–25 minutes.

  Add a splash of broth if it looks dry.

• Make-ahead: Assemble up to the cheese layer, cover tightly, and refrigerate up to 24 hours. Add 5–10 extra minutes to bake time.

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Benefits of This Recipe

• High protein: Lean beef, cheese tortellini, and Greek yogurt work together for a filling, satisfying meal.
• Weeknight-friendly: Uses store-bought tortellini and jarred sauce to save time without losing flavor.
• Balanced comfort: Creamy, cheesy, and saucy, but not heavy thanks to smart ingredient choices.
• Flexible: Easy to customize with veggies, different sauces, or alternative proteins.
• Great leftovers: Holds up well for lunches and meal prep.

Pitfalls to Watch Out For

• Curdled sauce: Add Greek yogurt off the heat or on low, and avoid boiling after it’s added.
• Watery casserole: Don’t add too much broth; measure carefully. Simmer the sauce briefly to thicken before baking.
• Underseasoning: Taste the sauce before baking.

  Jarred marinara varies, so add salt and pepper as needed.

• Mushy pasta: Use refrigerated tortellini, not already-cooked pasta. It finishes in the oven and stays pleasantly tender.
• Grease pooling: Choose lean beef and drain excess fat if needed before adding sauce.

Recipe Variations

• Veggie boost: Add 2 cups chopped spinach, sliced mushrooms, or diced zucchini after the onions. Sauté until softened before adding sauce.
• Spicy version: Swap marinara for arrabbiata and add extra red pepper flakes.
• Different protein: Use ground turkey or chicken for a lighter profile, or Italian sausage for extra richness.
• White sauce twist: Use a light Alfredo sauce instead of marinara, and add steamed broccoli florets.
• Extra cheesy: Stir 1/2 cup cottage cheese into the sauce for more protein and creaminess.
• Gluten-conscious: Look for gluten-free tortellini and confirm your sauce is gluten-free.
• One-pan method: If your skillet is oven-safe, assemble and bake right in the pan for fewer dishes.