1Heat the olive oil in a skillet over medium heat.
Warm the flour tortillas in the skillet for about 30 seconds on each side, until they are soft and pliable.
Place the grilled fish fillets in the center of each tortilla.
Top the fish with shredded lettuce, diced tomatoes, and shredded cheddar cheese.
Add a dollop of sour cream and a spoonful of salsa on top of each chalupa.
Fold the tortillas over the filling to form a chalupa.
Serve immediately and enjoy your Fish Chalupa!