This 6-ingredient casserole is a fan fave for kids

1 small onion, chopped
1 (1-pound) bag frozen tater tots
1 (10 ¾-ounce) can condensed cream of mushroom soup
½ cup milk
1 cup shredded cheddar cheese
Preheat the oven to 350 F. In a large skillet over medium heat, cook the beef and onion until browned. Drain the beef and add it to a mixing bowl with the soup and milk. Stir until well combined.
Transfer the mixture to a greased two-quart baking dish. Arrange the tater tots over the top in an even layer, and sprinkle with cheese. Bake, uncovered, 30 to 40 minutes, or until bubbly and browned.