This easy taco casserole with ground beef, tater tots, refried beans, and lots of cheese will be your new favorite weeknight dinner! This recipe is easy, delicious, and something everyone will love.
Preheat the oven to 350° F. Spray a 9x13 inch baking dish with non-stick cooking spray and set aside.
Heat a large skillet over medium heat. When the skillet is hot, add the ground beef and diced onion. Cook until the meat is browned and onions are translucent. Drain fat from pan if necessary.
Reduce heat to low and add in the taco seasoning and diced tomatoes. Stir to combine and simmer for 5 minutes.
Spread the refried beans into the bottom of the prepared baking dish. Place the frozen tater tots on top of the beans in a single layer.
Spread the meat mixture evenly on top of the tater tots.
Sprinkle the cheddar cheese over the meat mixture. Cover and bake for 20 minutes. Uncover and bake an additional 10-15 minutes or until cheese is melted.
Top with lettuce, black olives, chips, sour cream, salsa, and diced Roma tomato if desired.