by University of Mississippi Medical Center Cafeteria
2 pounds ground beef, cooked and drained 1 (1.25-ounce) packet taco seasoning 4 ounces sour cream 4 ounces mayonnaise 8 ounces Cheddar cheese, shredded and divided 1 yellow onion, sliced 2 cups biscuit mix 2 tomatoes, sliced 1 green bell pepper, sliced 1 (4-ounce) can...
