Name: The Best Golden Cheese Steak Tortellini Casserole
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Ingredients: 1 lb sirloin steak or steak tips, cut into bite-sized pieces; Salt & black pepper, to taste; 1 tbsp olive oil; 2 tbsp butter; 3 cloves garlic, minced; 1 tbsp all-purpose flour; 2 cups milk (whole milk or 2%); 1 cup beef broth; 2 cups shredded sharp cheddar cheese (or golden cheddar blend); 1 tsp Dijon mustard (optional); 1 tsp paprika; 1 package (20 oz) cheese tortellini, fresh or refrigerated; ½ cup shredded mozzarella; 2 tbsp chopped parsley

Description

This hearty casserole brings together tender seared steak, pillowy cheese tortellini, and a golden cheddar sauce baked to bubbly perfection. It’s the ultimate comfort food, perfect for family dinners, gatherings, or whenever you’re craving a warm, cheesy dish.

Ingredients

Scale

1 lb sirloin steak or steak tips, cut into bite-sized pieces
Salt & black pepper, to taste
1 tbsp olive oil
2 tbsp butter
3 cloves garlic, minced
1 tbsp all-purpose flour
2 cups milk (whole milk or 2%)
1 cup beef broth
2 cups shredded sharp cheddar cheese (or golden cheddar blend)
1 tsp Dijon mustard (optional)
1 tsp paprika
1 package (20 oz) cheese tortellini, fresh or refrigerated
½ cup shredded mozzarella
2 tbsp chopped parsley

Instructions

Preheat oven to 375°F (190°C). Season steak with salt and black pepper.
Heat olive oil in a skillet over medium-high heat. Sear steak for 2–3 minutes until browned on all sides. Remove and set aside.
In the same skillet, melt butter. Add garlic and sauté for 30 seconds.
Whisk in flour to make a roux, cooking for 1 minute.
Slowly whisk in milk and beef broth until smooth.
Stir in cheddar cheese, Dijon mustard, and paprika until the sauce becomes creamy and golden.
Cook tortellini according to package directions, slightly undercooking it. Drain well.
In a greased 9×13-inch baking dish, combine tortellini, steak bites, and cheese sauce. Mix gently to coat evenly.
Sprinkle mozzarella cheese on top.
Bake uncovered for 20–25 minutes, until bubbly and golden.
Let rest for 5 minutes, then garnish with parsley before serving.

Notes

For best results, slightly undercook the tortellini to avoid mushy pasta when baked.
Sirloin steak works well, but ribeye, flank, or even leftover steak can be used.
For added vegetables, stir in sautéed mushrooms, spinach, or broccoli before baking.
To make ahead, assemble the casserole without baking, cover, and refrigerate for up to 24 hours. Bake when ready to serve.
Leftovers keep well in the fridge for 3 days and can be reheated in the oven or microwave.

Prep Time: 15 minutes
Cook Time: 25 minutes