Papa George’s American Lamb Burger
Ingredients 2 12-oz Papa George’s 85% lean Pure American Ground Lamb 1 small onion (about 3 oz), peeled and finely chopped 4 slices (1/2″) sweet onion 8 slices Swiss cheese (optional) Olive oil 4 romaine lettuce leaves 4 slices (1/4″) tomato Sauce: ¼ cup mayonnaise 1 tablespoon Dijon-style mustard