For each wonton, take one wonton wrapper and wet the edges with water using your index finger. Add 1/2 teaspoon or less pesto to the center of the wonton wrapper, one piece of mozzarella and one or two pieces of tomato. Fold in half to make a triangle and be sure to seal and not allow for any air pockets. If any pesto leaks out, use a paper towel to wipe it. Pull the left and right corners down and add a little dab of water. Fold together and fold up about three times. Repeat with the rest of the wontons. (See my video on how to fold a wonton!)

Heat oil in a non-stick pan on medium for a few minutes. Add wontons to oil and cook on each side for 60 to 90 seconds on each side or until browned. Remove and place on a paper towel-lined plate. Sprinkle with parmesan cheese and serve with your favorite tomato sauce.