Ground Beef Stroganoff Casserole

Step 1
Preheat the oven to 350 degrees F (175 degrees C). Spray a 9×13-inch baking dish with cooking spray.

Step 2
Spray a large nonstick skillet with cooking spray and set over medium-high heat. Add ground beef. Cook, breaking up, until browned, about 10 minutes. Season with salt and pepper.

Step 3
Stir mushrooms, onion, and garlic into the skillet. Cook and stir until onion is tender, about 2 minutes. Add wine; reduce heat to low and simmer for 3 minutes. Add cream of mushroom soup, sour cream, and mustard.

Step 4
Put cooked noodles in a large bowl and pour beef mixture over; toss to coat. Pour into the prepared baking dish and cover with aluminum foil.

Step 5
Bake in the preheated oven until bubbling, about 25 minutes.