This old-fashioned oven baked 3-ingredient beef gallagher is the kind of dependable casserole that earns a permanent place in a family recipe box. It is simple, hearty, and made for busy evenings when you want something filling without a long list of ingredients. The combination of seasoned beef, creamy soup, and melted cheese bakes into a bubbling dish that feels especially welcome once the weather turns cool.
Serve this cozy beef casserole with buttered egg noodles, mashed potatoes, or plain white rice to catch every bit of the creamy, cheesy sauce. A crisp green salad, steamed green beans, or simple roasted carrots help balance the richness, and warm dinner rolls are always a good idea if you are feeding a hungry table.
Oven Baked 3-Ingredient Beef Gallagher
Servings: 6
Ingredients
1 1/2 pounds ground beef
1 (10.5-ounce) can condensed cream of mushroom soup
2 cups shredded cheddar cheese
Directions
1. Preheat the oven to 350°F and lightly grease a medium glass casserole dish.
2. In a large skillet over medium heat, cook the ground beef until fully browned, breaking it up into bite-size crumbles as it cooks. Drain off any excess grease.
3. Stir the condensed cream of mushroom soup into the cooked beef until everything is evenly coated and creamy.
4. Spread the beef mixture into the prepared casserole dish, then sprinkle the shredded cheddar cheese evenly over the top.
5. Bake for 20 to 25 minutes, until hot and bubbly and the cheese is fully melted with lightly golden spots on top. Let it rest for 5 minutes before serving.
Variations & Tips
For picky eaters: If your family prefers milder flavors and a smoother texture, use finely shredded mild cheddar so it melts evenly and blends right into the beef mixture.
Make it stretch: Spoon this over cooked rice, toast, biscuits, or noodles if you need to feed a few extra people without changing the recipe itself.
Use what you have: Cream of chicken or cream of celery soup can stand in for cream of mushroom if that is what is in the pantry, and the casserole will still bake up creamy and comforting.
Freeze ahead: Assemble the casserole, cover tightly, and freeze before baking for an easy future meal. Thaw overnight in the refrigerator before baking as directed.
Best baking tip: Let the casserole rest a few minutes after it comes out of the oven so the sauce thickens slightly and each serving lifts out more neatly.