The aroma of cheesy goodness wafting through the kitchen always sparks joyous conversations and cravings alike. That’s why I’m thrilled to share my Golden Cheese Steak Tortellini Casserole with you—a dish that transforms simple ingredients into a family-friendly feast. This recipe is a comfort food lover’s dream, combining tender steak, soft cheese tortellini, and a creamy, golden cheese sauce into one delectable casserole. The best part? It’s a breeze to whip up, making it perfect for busy weeknights or cozy gatherings with friends. You can even customize it to your liking—swap in different cheeses or proteins, and throw in some vibrant vegetables for added texture. So, are you ready to dig into this hearty delight and impress your loved ones with your culinary skills?

Why is this casserole a must-try?
Comforting, hearty goodness: Each bite of this Golden Cheese Steak Tortellini Casserole is a warm hug on a plate, perfect for cozy nights with family.
Customizable flavors: Whether you prefer different cheeses or vegetables, this dish encourages creativity, allowing you to adapt it for any palate.
Quick to prepare: With straightforward steps, you can have a stunning meal ready in no time, making it ideal for busy weeknights.
Crowd-pleaser: Packed with rich flavors, it’s no wonder this casserole is a family favorite—perfect for gatherings or meal prep!
Easy make-ahead: Prepare it ahead of time and save yourself the stress by refrigerating unbaked for 24 hours or freezing it for later enjoyment.
For more meal inspiration, check out my delightful Sweet Sticky Steak that could make another amazing dinner option!
Cheese Steak Tortellini Casserole Ingredients
For the Casserole
- 1 lb sirloin steak or steak tips – Provides rich protein and flavor. Substitution: Chicken, sausage, or ground beef can be used.
- Salt & black pepper – Enhances natural flavors of the steak. Adjust to personal taste.
- 1 tbsp olive oil – Used for searing the steak. Can be substituted with vegetable oil.
- 1 tbsp all-purpose flour – Thickens the cheese sauce. Gluten-free option: Use gluten-free flour.
- 2 cups milk (whole or 2%) – Creamy base for the sauce. Low-fat milk can be used as a lighter option.
- 1 cup beef broth – Adds depth to the sauce. Vegetable broth for a lighter flavor.
- 2 cups shredded sharp cheddar cheese – Main cheese for creaminess and flavor. Substitution: Gruyère, Fontina, or a blend of Italian cheeses.
- ½ cup shredded mozzarella (for topping) – Creates a bubbly, golden crust. Substitute with provolone or Italian cheese blend.
- 2 tbsp chopped parsley (for garnish) – Adds color and fresh flavor. Can use basil or chives as alternatives.
For the Tortellini
- 1 package (20 oz) cheese tortellini (fresh or refrigerated) – Base of the casserole providing texture and flavor. Frozen tortellini is acceptable; cook accordingly.
For the Flavor Boost
- 2 tbsp butter – Adds richness to the cheese sauce. Use margarine for a dairy-free option.
- 3 cloves garlic, minced – Introduces aromatic flavor base. Optional to substitute with garlic powder (1 tsp).
- 1 tsp Dijon mustard (optional) – Enhances flavor complexity. Omit if preferred.
- 1 tsp paprika – Adds a subtle spice. Smoked paprika for a different flavor profile.
Feel free to get creative with your Cheese Steak Tortellini Casserole by mixing in your favorite ingredients or adjusting the recipe to suit personal preferences!
Step‑by‑Step Instructions for Cheese Steak Tortellini Casserole
Step 1: Preheat the Oven
Begin by preheating your oven to 375°F (190°C). This temperature is crucial for achieving that deliciously golden, bubbly topping on your Cheese Steak Tortellini Casserole. While the oven warms up, you can prepare the ingredients, ensuring everything is ready to go for seamless cooking.
Step 2: Sear the Steak
Season 1 pound of sirloin steak or steak tips with salt and black pepper for flavor. In a large skillet, heat 1 tablespoon of olive oil over medium-high heat. Once the oil is hot and shimmering, add the steak pieces and sear them for 2–3 minutes until they’re nicely browned on the outside. Transfer them to a plate and set aside to rest.
Step 3: Make the Cheese Sauce
In the same skillet, reduce the heat to medium and melt 2 tablespoons of butter. Add 3 cloves of minced garlic, sautéing for about 30 seconds until fragrant. Stir in 1 tablespoon of all-purpose flour and cook for 1 minute until golden. Gradually whisk in 2 cups of milk and 1 cup of beef broth until the mixture is smooth. Keep stirring until it thickens slightly.
Step 4: Add the Cheeses and Seasoning
Once the sauce is thickened, remove it from the heat and stir in 2 cups of shredded sharp cheddar cheese, 1 teaspoon of Dijon mustard (if using), and 1 teaspoon of paprika. Mix until the cheese is fully melted and the sauce is creamy. This rich cheese sauce will elevate your Cheese Steak Tortellini Casserole into a comforting dish.
Step 5: Cook the Tortellini
Prepare the tortellini according to the package instructions. If using fresh or refrigerated tortellini, cook them slightly under to avoid overcooking once baked. Drain the tortellini and drizzle with a bit of olive oil to prevent sticking, then fold them gently with the lean steak pieces.
Step 6: Assemble the Casserole
Grease a 9×13-inch baking dish with butter or cooking spray. In the dish, combine the cooked tortellini, seared steak, and creamy cheese sauce, stirring carefully to mix everything evenly. Finally, top the casserole with ½ cup of shredded mozzarella cheese, creating a beautiful layer that will melt into a golden crust as it bakes.
Step 7: Bake the Casserole
Place the assembled Cheese Steak Tortellini Casserole in the preheated oven and bake uncovered for 20–25 minutes. Keep an eye on the dish as it cooks; you want the cheese on top to be melted and bubbly, turning a lovely golden brown at the edges.
Step 8: Garnish and Serve
After baking, remove the casserole from the oven and let it rest for a few minutes. Sprinkle 2 tablespoons of chopped parsley over the top for a touch of color and fresh flavor. Now your Cheese Steak Tortellini Casserole is ready to be served, bringing warmth and comfort to your table!

How to Store and Freeze Cheese Steak Tortellini Casserole
Fridge: Store leftovers in an airtight container for up to 3 days. Reheat in the oven or microwave until heated through for a delightful meal any time.
Freezer: Assemble the unbaked casserole, cool completely, and cover tightly. Freeze for up to 3 months. Thaw overnight in the fridge before baking for optimal results.
Reheating: Reheat individual portions in the microwave or the entire casserole in a preheated oven at 350°F (175°C) for 25–30 minutes until warmed through. Enjoy your Cheese Steak Tortellini Casserole!
Make-Ahead: For convenience, you can prepare the casserole up to 24 hours in advance, then simply bake when ready to serve.
Expert Tips for Cheese Steak Tortellini Casserole
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Searing Perfection: Make sure to give your steak plenty of space in the skillet to achieve an even sear, preventing steaming.
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Smooth Sauce: To prevent lumps in your cheese sauce, whisk continuously and consider warming the milk slightly before adding.
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Tortellini Cooking: Slightly undercook the tortellini since they’ll finish cooking in the oven. This helps maintain the right texture in your Cheese Steak Tortellini Casserole.
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Make-Ahead Magic: Prepare the casserole a day in advance; just assemble, cover, and refrigerate it. Bake it fresh when you’re ready to serve!
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Freezing Tips: If freezing, avoid adding the mozzarella topping until you’re ready to bake. Wrap tightly and thaw overnight before baking for best results.
Make Ahead Options
These Golden Cheese Steak Tortellini Casserole preparations are perfect for busy home cooks looking to save time during hectic weekdays! You can prepare the entire casserole unbaked and refrigerate it for up to 24 hours before popping it in the oven. Simply follow the assembling instructions, cover tightly with foil, and store it in the fridge to keep the flavors fresh. When you’re ready to bake, just remove the foil and cook as directed. Alternatively, for longer storage, you can assemble the casserole and freeze it for up to three months; make sure to thaw it overnight in the fridge before baking. This way, you’ll still enjoy that creamy and rich casserole just as delicious as when freshly made!
What to Serve with Golden Cheese Steak Tortellini Casserole
The warm and comforting aroma of this delightful casserole invites a spread of tantalizing sides that perfectly complement its rich flavors.
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Garlic Bread: The buttery, toasted slices are perfect for sopping up that creamy cheese sauce, adding a satisfying crunch to your meal.
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Classic Caesar Salad: Crisp romaine, tangy dressing, and crunchy croutons create a refreshing contrast to the casserole’s warmth and creaminess.
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Steamed Broccoli: Bright green and lightly seasoned, it offers a nutritious pop of color and freshness that balances the hearty casserole.
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Roasted Vegetables: A medley of seasonal vegetables brings earthiness and natural sweetness. Try carrots, bell peppers, or zucchini for a vibrant addition.
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Creamy Coleslaw: The cool, tangy slaw refreshes your palate while providing a delightful crunch, making every bite a new experience.
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Chardonnay: A chilled glass of Chardonnay pairs beautifully, bringing out the richness of the cheese and complementing the savory steak notes with its crisp acidity.
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Chocolate Pudding: For a sweet touch to end the meal, this creamy dessert provides a simple yet indulgent finish to your comforting dinner.
Engaging your family and friends with these delicious pairings will elevate your dining experience and create lasting memories around the table!
Cheese Steak Tortellini Casserole Variations
Feel free to make this cozy casserole your own with simple swaps and additions that will make your kitchen sing with flavor!
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Cheese Swap: Replace sharp cheddar with Gruyère or Fontina for a creamy, nutty twist. These cheese choices create a richer flavor profile that elevates the dish!
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Veggie Boost: Toss in sautéed spinach, mushrooms, or bell peppers for a pop of color and nutrition. This is a wonderful way to sneak in those healthy veggies without sacrificing taste.
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Spice It Up: Add cayenne pepper or crushed red pepper flakes to the cheese sauce for an extra kick. This little adjustment can turn this comforting dish into a spicy delight suitable for heat lovers!
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Different Protein: Use chicken or sausage instead of beef for a lighter or richer flavor. Each option will give the casserole its unique twist while still delivering that heartwarming goodness.
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Dairy-Free Option: Substitute dairy with almond or oat milk and use vegan cheese for a comforting vegan meal. You won’t miss the richness once you pile on those flavors!
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Add Nuts: Sprinkle some toasted pine nuts or walnuts on top before baking for added crunch. This creates a delightful texture that complements the soft tortellini perfectly.
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Herb Infusion: Swap parsley for fresh basil or chives to garnish. Each herb brings its own distinct flavor, refreshing your dish with a new dimension and aroma.
For a delicious dinner pairing, consider trying this Cheese Shrimp Penne recipe that would also impress family and friends!

Cheese Steak Tortellini Casserole Recipe FAQs
How do I choose the right steak for the casserole?
Absolutely! I recommend using sirloin steak or steak tips for a rich flavor and tenderness. Look for cuts that have a nice marbling of fat, as this will enhance the taste while cooking. If you’re in the mood for a lighter option, feel free to substitute it with chicken, sausage, or even ground beef—each choice brings its unique twist to your Cheese Steak Tortellini Casserole.
What’s the best way to store leftovers?
Very! Store your leftover casserole in an airtight container in the refrigerator for up to 3 days. To reheat, simply pop it in the microwave or place it back in the oven until it’s heated through. If you want to preserve its creamy texture, covering it while reheating can help maintain moisture.
Can I freeze the Cheese Steak Tortellini Casserole?
Of course! To freeze, assemble the unbaked casserole and let it cool completely before covering it tightly. It can be frozen for up to 3 months. When you’re ready to enjoy it, make sure to thaw it overnight in the refrigerator before baking, as this will ensure even cooking and a beautifully golden crust.
How can I prevent the cheese sauce from getting lumpy?
I often make sure to whisk continuously while adding ingredients! A great tip is to warm your milk slightly before incorporating it into the sauce. Additionally, cook the flour for about a minute before whisking in the milk and broth. This method helps create a smooth, creamy sauce for your Cheese Steak Tortellini Casserole every time.
What if I have dietary restrictions or allergies?
Absolutely! This dish can be easily adapted. For a gluten-free version, simply substitute the all-purpose flour with gluten-free flour. If dairy is a concern, you can use margarine or dairy-free cheese alternatives to make the casserole more accommodating. Be sure to check labels for any additives that might not suit your specific dietary needs.

Heavenly Cheese Steak Tortellini Casserole for Cozy Nights
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C).
- Season the sirloin steak with salt and black pepper. Heat olive oil in a large skillet over medium-high heat, add steak, and sear for 2-3 minutes. Transfer to a plate to rest.
- In the same skillet, melt butter, add minced garlic, and sauté for 30 seconds. Stir in flour, cook for 1 minute, then whisk in milk and beef broth until smooth. Continue stirring until thickened.
- Remove from heat and stir in cheddar cheese, Dijon mustard, and paprika until melted and creamy.
- Cook tortellini according to package instructions. If using fresh, cook slightly under. Drain and drizzle with a bit of olive oil, then mix gently with seared steak.
- In a greased baking dish, combine tortellini, steak, and cheese sauce, mixing evenly. Top with shredded mozzarella cheese.
- Bake uncovered in the oven for 20-25 minutes until cheese is melted and bubbly.
- Let casserole rest for a few minutes, then garnish with chopped parsley before serving.
