Cheeseburger Casserole: All-American Comfort in a Dish

Ingredients

• 1 pound (450g) ground beef
• 1 medium yellow onion, chopped (approx. 1 cup/150g)
• 1 teaspoon garlic powder
• 1/2 teaspoon onion powder
• 1/4 teaspoon black pepper
• 1/2 teaspoon salt
• 1 (10.75 ounce) can condensed cream of mushroom soup
• 1/2 cup (120ml) milk
• 1/4 cup (60ml) ketchup
• 2 tablespoons yellow mustard
• 2 cups (200g) shredded cheddar cheese
• 1 cup (200g) tater tots, frozen
• Diced pickles, shredded lettuce, diced tomatoes (for serving) (Optional)