Step 1: Preheat your oven to 400°F (200°C). Lightly grease a standard 12-cup muffin tin.
Step 2: Arrange the frozen tater tots on a baking sheet and bake for 10-12 minutes, or until slightly softened but not fully crispy.
Step 3: Remove tots from the oven and, working quickly, press 4-5 softened tater tots into each muffin cup, forming a sturdy cup shape with a base and sides. You can use the bottom of a small glass or your fingers. Return the muffin tin to the oven and bake for another 10 minutes, or until the tater tot cups are lightly golden and firm.
Step 4: While the tater tot cups are baking, brown the ground beef in a large skillet over medium-high heat, breaking it apart with a spoon. Drain any excess grease.
Step 5: Add the crumbled cooked bacon, ketchup, mustard, mayonnaise, garlic powder, onion powder, salt, and pepper to the beef. Stir well to combine and heat through for 2-3 minutes.
Step 6: Remove the tater tot cups from the oven. Spoon the bacon cheeseburger mixture evenly into each tater tot cup.
Step 7: Top each filled cup with a sprinkle of cheddar and mozzarella cheese.
Step 8: Return the muffin tin to the oven and bake for another 8-10 minutes, or until the cheese is melted and bubbly and the tater tot cups are golden and crispy.
Step 9: Carefully remove the cones from the muffin tin and serve hot with extra burger sauce for dipping, if desired.