Follow the steps in order for the best result.
Prepare the fish according to the package's cooking instructions until fully cooked.
While the fish is cooking, spread the mayonnaise evenly over the tortilla.
Arrange the lettuce leaves on top of the mayonnaise.
Sprinkle the chopped green onion over the lettuce.
Once the fish is cooked, place it on top of the lettuce and green onion.
Wrap the tortilla tightly, ensuring the filling is secure.
Optional: Place the wrapped tortilla in a preheated grill (like a George Foreman grill) for 3-4 minutes, or until the wrap is warmed through and grill marks appear.
Serve immediately and enjoy with your favorite refreshing beverage.