Sinking into a plate of creamy goodness topped with a golden crust, it’s hard not to feel like you’re wrapped in a warm hug. This Golden Cheese Steak Tortellini Casserole combines tender sirloin steak and pillowy cheese tortellini in a luscious cheese sauce, making it the ultimate comfort food for any evening. Whether you’re hosting friends for a casual dinner or simply need a quick family meal, this recipe is ready to please without much fuss. Quick to prepare and easy to customize, it’s a dish that transforms weeknight dinners into something extra special. With just a few ingredients, you can create a hearty, savory masterpiece that everyone will love. Are you ready to indulge in this cozy delight? Let’s get cooking!

Why is this casserole so irresistible?
Comforting, hearty flavors: This Golden Cheese Steak Tortellini Casserole is the ultimate dish for cozy nights, combining tender steak with rich cheese sauce.
Quick prep time: With its simple steps, you can have this delicious meal ready in no time, perfect for busy weeknights.
Customizable ingredients: Feel free to mix in veggies or swap proteins – this recipe adapts to your pantry! Try incorporating Pumpkin Cream Cheese for a seasonal twist.
Crowd-pleaser: Everyone loves a creamy, cheesy casserole; this dish is sure to impress family and friends alike.
Make-ahead magic: You can easily prepare it ahead of time, making it a convenient option for gatherings or busy days.
Golden Cheese Steak Tortellini Casserole Ingredients
Unlock the secrets to comfort food with this delightful dish!
For the Casserole
- Sirloin Steak (1 lb) – The protein powerhouse that gives this casserole its rich flavor; swap with chicken or sausage for a twist.
- Salt & Black Pepper – Essential seasonings that enhance the steak’s savory taste; consider using sea salt for an elevated touch.
- Olive Oil (1 tbsp) – Perfect for searing the steak and locking in juices; a light vegetable oil works too if preferred.
- Butter (2 tbsp) – This adds lusciousness to the cheese sauce; stick with unsalted butter to control your casserole’s saltiness.
- Garlic (3 cloves, minced) – Provides a fragrant, aromatic punch to the sauce; fresh garlic gives the best flavor!
- All-Purpose Flour (1 tbsp) – Key for thickening the cheese sauce; try gluten-free flour for a suitable alternative.
- Milk (2 cups, whole or 2%) – The creamy base for the sauce; almond or oat milk can work as dairy-free options, just be mindful of flavor differences.
- Beef Broth (1 cup) – Adds depth and richness to your sauce; vegetable broth is great for a lighter option.
- Sharp Cheddar Cheese (2 cups, shredded) – Provides the bold flavor and creaminess that makes this casserole shine; switch it up with Gruyère or Fontina if you’re feeling adventurous.
- Dijon Mustard (1 tsp optional) – A hint of complexity in the sauce; feel free to leave it out if mustard’s not your thing.
- Paprika (1 tsp) – Adds warmth and a touch of color; smoked paprika can really elevate the flavor profile.
- Cheese Tortellini (1 package, 20 oz) – This delightful pasta absorbs all the delicious sauce flavors; using frozen tortellini is an excellent choice—just be sure to undercook slightly before baking.
- Mozzarella Cheese (½ cup, shredded for topping) – Creates that irresistible golden crust on top; mix with Parmesan for extra cheesy goodness.
- Parsley (2 tbsp, chopped for garnish) – A fresh burst of flavor and color to brighten your dish; chives or basil make great substitutes!
Indulge in the comforting charm of this Golden Cheese Steak Tortellini Casserole that brings warmth, nourishment, and joy to your dinner table!
Step‑by‑Step Instructions for Golden Cheese Steak Tortellini Casserole
Step 1: Preheat and Prep
Begin by preheating your oven to 375°F (190°C). While it’s warming up, take your sirloin steak and season it generously with salt and black pepper. This will enhance the savory flavors in your Golden Cheese Steak Tortellini Casserole. Have a large skillet ready on medium-high heat with olive oil, as you’ll soon sear the steak to perfection.
Step 2: Sear the Steak
Once the skillet is hot, add the steak pieces and sear them for about 2-3 minutes on each side until they’re beautifully browned. This quick yet crucial step locks in the juices and flavor. Once seared, remove the steak from the skillet and set it aside on a plate to rest while you prepare the creamy sauce.
Step 3: Create the Roux
In the same skillet, add butter and allow it to melt over medium heat. Once the butter is melted, add the minced garlic and cook for about 30 seconds until fragrant. Next, sprinkle in the flour, stirring constantly for about a minute, forming a roux that will thicken your cheese sauce to creamy goodness in the Golden Cheese Steak Tortellini Casserole.
Step 4: Whisk in the Liquids
Gradually whisk in the milk and beef broth, stirring continuously until the mixture is smooth and comes to a gentle simmer. This should take about 2-3 minutes. Once it’s thickened slightly, stir in the shredded cheddar cheese, Dijon mustard (if using), and paprika, allowing everything to melt into a rich and creamy sauce that envelops the tortellini beautifully.
Step 5: Cook the Tortellini
Prepare the cheese tortellini according to the package instructions but cook it slightly underdone—about 1-2 minutes less than suggested. This ensures it maintains its texture during baking. Once ready, drain the tortellini and toss it with a little olive oil to prevent sticking before combining it with the cooked steak and cheesy sauce.
Step 6: Combine in Baking Dish
In a greased 9×13 baking dish, combine the undercooked tortellini, seared steak, and creamy cheese sauce. Gently stir everything together until well mixed, ensuring that every bite of your Golden Cheese Steak Tortellini Casserole is coated in that luscious sauce.
Step 7: Bake to Perfection
Sprinkle the shredded mozzarella cheese evenly on top of the casserole, creating a tempting layer of cheesy goodness. Place the baking dish in the preheated oven and bake uncovered for 20-25 minutes. You’ll know it’s done when the cheese is bubbly and golden brown, creating a delightful crust.
Step 8: Garnish and Serve
After baking, remove the casserole from the oven and allow it to rest for about 5 minutes. This resting time helps the flavors settle and makes serving easier. Finally, garnish your Golden Cheese Steak Tortellini Casserole with fresh chopped parsley before serving to add a burst of color and freshness.

Golden Cheese Steak Tortellini Casserole Variations
Feel free to let your creativity shine in the kitchen with delightful twists on this comforting dish!
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Cheese Options: Switch out cheddar for Gruyère, Fontina, or a blend for a gourmet flair. Each cheese brings its own unique character, transforming the sauce into a new delight.
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Vegetable Medley: Add sautéed spinach, mushrooms, or roasted bell peppers for a nutritious boost. These colorful veggies not only enhance the flavor but also make it visually stunning!
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Protein Swaps: Substitute sirloin steak with chicken or ground beef for a different taste experience. This helps personalize the dish based on your cravings or what’s in your fridge.
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Spice It Up: For those who like a little heat, sprinkle in some cayenne pepper or crushed red pepper flakes. Just a pinch can elevate your casserole from comforting to exciting!
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Herb Infusion: Toss in fresh herbs like thyme or oregano to the sauce for an aromatic touch. The extra herbal flavor will complement the cheese beautifully, making every bite more memorable.
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Creamy Twist: Explore the creaminess by mixing in cream cheese or sour cream into the sauce. This adds richness that makes each spoonful even more indulgent!
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Zesty Kick: A dash of Worcestershire sauce can introduce a tangy dimension to your casserole. It’s a simple addition that brings depth to the overall flavor.
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Add a Crunch: Top the casserole with breadcrumbs mixed with Parmesan before baking for a crispy topping. This delightful texture contrast is sure to be a hit at your dinner table!
Remember that cooking is all about personalizing your experience, much like the comforting recipes found in my Baked Cream Cheese or savory Keto Philly Cheesesteak. Enjoy experimenting!
What to Serve with Golden Cheese Steak Tortellini Casserole
When serving this creamy delight, consider side dishes that enhance the comforting experience while adding a pop of flavor.
- Garlic Bread: Warm, buttery garlic bread is the classic pairing, perfect for savoring every bite of the cheesy casserole.
- Green Salad: A crisp mixed green salad with a light vinaigrette cuts through the richness, providing a refreshing balance to your meal.
- Steamed Vegetables: Bright, colorful steamed veggies like broccoli or green beans add texture and nutrients, complementing the savory casserole perfectly.
- Roasted Brussels Sprouts: Caramelized Brussels sprouts drizzled with balsamic glaze enhance the meal’s comforting essence while introducing a bit of nutritional flair.
- Corn on the Cob: Juicy, sweet corn on the cob is a fun, hearty addition that brings a touch of playful texture.
- Red Wine: A glass of full-bodied red wine, like Cabernet Sauvignon, pairs excellently with the rich steak and cheese, making it a cozy evening treat.
Storage Tips for Golden Cheese Steak Tortellini Casserole
- Fridge: Store leftover casserole in an airtight container in the fridge for up to 3 days. Reheat in the microwave or bake at 350°F (175°C) until warmed through.
- Freezer: Freeze the assembled casserole (before baking) for up to 3 months. Thaw in the fridge overnight, then bake according to instructions.
- Reheating: For best results, reheat covered in the oven at 350°F (175°C) for 20-25 minutes or until heated throughout.
- Make-Ahead: You can prepare the casserole in advance; just assemble and refrigerate for up to 24 hours before baking for a convenient meal option.
Expert Tips for Golden Cheese Steak Tortellini Casserole
- Maintain Steak Juiciness: Avoid overcrowding the pan when searing steak. This ensures each piece caramelizes nicely, enhancing flavor.
- Perfect Tortellini Texture: Slightly undercook the tortellini according to the package instructions. This prevents them from becoming mushy during baking in the casserole.
- Use Fresh Cheese: Opt for freshly grated cheddar and mozzarella. It melts better than pre-shredded versions, leading to a creamier sauce in your casserole.
- Rest Before Serving: Allow the casserole to rest for 5 minutes after baking. This enhances the stability of your slices and makes serving easier.
- Add a Crispy Top: For a visually appealing finish, broil the casserole for the last 1-2 minutes of baking. Crispy cheese adds extra flavor and texture to the dish.
Make Ahead Options
These Golden Cheese Steak Tortellini Casserole components are perfect for meal prep, saving you precious time on busy weeknights! You can prepare the entire casserole up to 24 hours in advance by assembling it, then simply cover it tightly with plastic wrap and refrigerate. To maintain optimal quality, undercook the tortellini slightly and avoid baking until you’re ready to serve. When it’s time to enjoy, simply preheat your oven to 375°F (190°C) and bake for 25-30 minutes, ensuring the cheese is bubbling and golden. This way, you’ll have a cozy, delicious meal ready with minimal effort, just as if you made it fresh that day!

Golden Cheese Steak Tortellini Casserole Recipe FAQs
How do I choose the best sirloin steak?
Absolutely! Look for sirloin steak that is bright red with minimal dark spots. The cuts should have some marbling (fat running through the meat), which ensures flavor and tenderness. When selecting, avoid any that have a dull color or are overly aged.
What are the best storage methods for leftovers?
You can store your leftover Golden Cheese Steak Tortellini Casserole in an airtight container in the fridge for up to 3 days. Just reheat it in the microwave or bake at 350°F (175°C) until warmed through. It’s always best to cover it while reheating to keep it moist.
Can I freeze this casserole?
Very! The casserole can be frozen before baking for up to 3 months. To do this, prepare the entire dish and cover it tightly with foil or plastic wrap to prevent freezer burn. When you’re ready to bake, simply thaw it overnight in the refrigerator and add around 10-15 minutes to the baking time to ensure it cooks through.
What should I do if the casserole is too dry after baking?
If your casserole comes out dry, there are a couple of tricks you can employ. First, ensure you have enough cheese sauce mixed in—add a bit more milk or broth to the sauce next time. If it’s already baked, mix a bit of warm milk or broth into individual servings, or serve with a side of warm cheese sauce for dipping!
Are there any dietary considerations I should keep in mind?
For those with dietary restrictions, you can easily make the Golden Cheese Steak Tortellini Casserole gluten-free by swapping regular flour with a gluten-free alternative. To accommodate lactose intolerance, opt for lactose-free milk and cheese. Also, ensure to check the tortellini packaging for any allergens as some brands may contain gluten, dairy, or eggs.
Can I use a different protein in place of the steak?
Yes, you can certainly switch out the steak with chicken, ground beef, or even sausage! If using chicken, I recommend sauting it thoroughly to ensure it’s fully cooked through. For ground beef, brown it in the skillet and then crumble it into the casserole mixture. It’s all about personal preference and making it your own!

Golden Cheese Steak Tortellini Casserole for Cozy Nights
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C) and season the sirloin steak with salt and black pepper.
- Sear the steak pieces in a hot skillet with olive oil for 2-3 minutes on each side until browned.
- Remove the steak and in the same skillet, melt butter, add garlic, and cook for 30 seconds.
- Sprinkle in the flour while stirring constantly for about a minute to form a roux.
- Whisk in the milk and beef broth until smooth, then stir in cheddar cheese, mustard, and paprika until melted.
- Cook the cheese tortellini according to the package instructions, but undercook slightly. Toss with olive oil.
- In a greased baking dish, combine the tortellini, steak, and cheese sauce until well mixed.
- Sprinkle mozzarella on top and bake uncovered for 20-25 minutes until bubbly and golden brown.
- Let it rest for 5 minutes, then garnish with parsley before serving.

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