- Preheat oven to 350°F (175°C).
- Brown the ground beef with diced onions in a skillet until fully cooked. Drain the excess fat.
- In a large mixing bowl, combine the cooked beef, cooked egg noodles, cream of mushroom soup, diced tomatoes, and half the shredded cheese. Add salt and pepper to taste.
- Transfer mixture to a greased 9×13-inch baking dish.
- Sprinkle the remaining cheese on top.
- Bake for twenty to twenty-five minutes, or until the cheese is bubbling and melted.
Enjoy this comforting casserole! It pairs well with a side of garlic bread or a simple salad.
