Preheat your oven to 375 degrees F.
Add the ground beef to a large (about 17 inches) oven-safe skillet, break it up, and cook for 7-8 minutes or until browned completely.
Stir in the onions and garlic and cook for 2-3 minutes. Stir in the Worcestershire sauce, Italian seasoning, granulated onion, garlic powder, and season with salt and pepper to taste. Cook for 2 minutes.
Turn off the heat and stir in the cheddar cheese soup, cream of mushroom, peas, and corn. Mix until well combined, then use a spatula to spread the mixture evenly, and then top it off with the shredded cheese.
Top the casserole with an even layer of frozen tater tots and then bake uncovered for 35-40 minutes or until the tater tots are golden brown.
Serve warm and enjoy!