Prep time: 15-20 minutes Cook time: 20 minutes Materials: 1 lb. ground beef 1 large onion sliced 2 tbsp. olive oil 1/4 cup mayonnaise 1/4 cup Ketchup 6 slices American cheese (or whatever cheese you like) 6 flour tortillas (small) Salt and pepper to taste Process: In a skillet add in olive oil and sliced…