01 -
Set the oven to 350°F and allow it to fully preheat before beginning assembly.
02 -
In a large skillet over medium heat, cook the ground beef, diced onion, and minced garlic until the beef is fully browned and the onions are translucent. Drain off excess fat.
03 -
Transfer the cooked beef mixture to a large mixing bowl and combine with cream of mushroom soup, sour cream, Worcestershire sauce, frozen mixed vegetables, and half of the shredded cheddar cheese. Mix thoroughly to ensure even distribution.
04 -
Spread the mixed filling evenly in a large baking dish, smoothing the top to create an even layer. Arrange the frozen tater tots in a single layer on top of the filling.
05 -
Bake in the preheated oven for approximately 30 minutes, or until the tater tots are crisp and golden brown.
06 -
Sprinkle the remaining shredded cheddar cheese evenly over the casserole and return to the oven for an additional 5 minutes, or until the cheese is fully melted.
07 -
Allow the casserole to cool for several minutes before slicing and serving.