Preheat oven to 400 degrees. Place tortilla shell on a greased pan.
Spread the refried beans onto the soft tortilla. Heat Queso dip in the microwave on high for 30 seconds to soften, then spread over the refried beans. Sprinkle with Mexican cheese blend then add prepared taco meat. Bake 12 mins or until cheese is melted and bubbly.
Cool pizzas for 2-3 mins, then spoon on sour cream. Top with lettuce and salsa. Drizzle with taco sauce.