Soak the shrimp in lukewarm water with a spoonful of flavored salt for about 30 minutes.
Add olive oil to a frying pan and sauté the shrimp with minced garlic.
Remove only the shrimp and set aside, then place the tortilla on top of the remaining garlic and oil to toast.
Flip the tortilla and spread tomato paste evenly on top.
Add the shrimp topping reserved from step 2 and sliced olives on the tortilla, then sprinkle mozzarella cheese.
Use a kitchen torch to lightly char the top, and it's done.