With no dough! make this delicious and crunchy dinner tonight! in 10 minutes! no frying! super easy

ngredients:
1 medium onion.
2-3 tablespoons of olive oil.
1 medium red bell pepper.
salt.
1/4 teaspoon of black pepper.
3/4 teaspoon of paprika.
1 teaspoon of garlic powder.
300g mushrooms.
2 cans of tuna (160g).
1 can of corn (80g).
some gherkins, or green olives (6-7).
~ 3/4 cup of shredded mozzarella cheese (160g).
9-10 mini tortillas.
Chopped parsley for garnish (optional).