Preheat the oven to broil and line a small baking sheet with parchment paper.
Place a dollop of refried beans onto one side of a cracker and place on the prepared baking sheet. Place a generous spoonful of the ground taco meat on top of the refried beans. Take another cracker, and spread a dollop of beans onto one side, then place on top of the ground beef, forming a “sandwich”.
Sprinkle a generous amount of mexican cheese on top of the cracker, followed by diced tomato and black olives.
Repeat with remaining ingredients for desired amount of mini Mexican pizzas.
Once you’ve assembled all of your pizzas, place in the oven for 2 minutes until the cheese is all mented.