Nathans Chunky Chicken Quesadilla

Name: Nathan's Chunky Chicken Quesadilla
Ingredients: 4 large whole-wheat tortillas; 2 cups shredded Cheddar; 1 Granny Smith apple, diced; 1 red onion, diced; 2 1/4 cups cooked and sliced chicken or veggie chicken; 3/4 cup Peanut Sauce, recipe follows; Sour cream, for garnish; 1 cup peanut butter; 3/4 cup hot water; 1/8 cup molasses; 1 teaspoon soy sauce; 1/4 teaspoon cayenne pepper; 1/4 teaspoon sugar; 1/8 teaspoon salt; 1 tablespoon lemon juice