Preheat the Oven:

• Preheat oven to 375 degrees F. This ensures the oven is at the correct temperature for even baking, preventing uneven cooking.

Cook the Ground Beef:

• In a large skillet, cook beef over medium heat until browned. Use a spatula or spoon to break up the ground beef as it cooks. Ensure the beef is cooked through and no longer pink, preventing undercooking.

Combine the Ingredients:

• Add the corn, cream of mushroom soup, ½ cup cheese, milk, sour cream, onion powder, black pepper, and bacon to the skillet.
• Mix well to combine all ingredients. Ensure the sauce is smooth and the ingredients are evenly distributed, creating a harmonious blend of flavors.

Assemble the Casserole:

• In a 9×13 pan, layer the beef mixture.
• Top with the remaining ½ cup cheese.
• Line up the tater tots in a single layer over the cheese. This creates a crispy, golden crust, enhancing the texture.

Bake the Casserole:

• Bake for 40-45 minutes uncovered.
• The tater tots should be golden brown and the filling bubbly. Ensure the casserole is heated through, preventing undercooking.

Add Final Cheese Layer and Bake Again:

• Sprinkle with remaining cheese.
• Bake another 5 minutes, or until cheese is melted. This creates the cheesy final layer, enhancing the visual appeal.

Serve:

• Remove from the oven and let cool slightly before serving. This allows the casserole to set, ensuring a firm texture.