Brown ground beef in a skillet over medium heat, about 6–8 minutes. Drain excess fat, then stir in barbecue sauce, salt, and pepper. Simmer for 2 minutes.

Set oven to 375°F (190°C) while you assemble the dish.

Spread the beef mixture in a greased baking dish. Sprinkle bacon and chopped onions on top.

Evenly cover the mixture with shredded cheddar cheese.

Arrange frozen tater tots in a single layer across the top.

Bake uncovered for 25–30 minutes, until the tots are golden and the cheese is bubbling.

Let it rest for 5 minutes before serving to help it set.