Lightly fry the tortillas on both sides until they just start to get brown spots. Do not overcook or they will be stiff and brittle.
Sauté the garlic and onion until the onion is soft and translucent.
Place about 1/2 cup of the hot filling in each tortilla and roll it up. Place two or three tortillas side by side on large plates. Place refried beans or black beans and Spanish rice on the plate. Pour some sauce over the rolled and filled tortillas.
Place the plates in the hot oven for five minutes. Remove them from the oven and immediately sprinkle them with additional grated cheese and sliced black olives. If the cheese does not melt quickly, place the plates back in the oven for a minute.