Sauce:
1 1/2 cups Pico de Gallo
1/2 cup mayonnaise
1/2 cup ketchup
- While the burgers are grilling, spray a frying pan with cooking spray. With the stove on medium-low, lightly toast the flour tortillas for about 2-3 minutes on each side. They should be light brown, and still a little chewy on the inside.
- Put one slice of cheese on a toasted flour tortilla. Place a burger over the cheese with another slice of cheese on top of the burger.
- For the sauce, mix the ketchup and mayonnaise. Mix in 3/4 cup Pico de Gallo to the mayonnaise/ketchup mixture.
- Spread some of the sauce mixture on each burger, and top with another spoonful of Pico de Gallo and some lettuce. Top with another flour tortilla.