apple chicken quesadillas

Ingredients

• 2 medium tart apples, sliced
• 1 cup diced cooked chicken breast
• 1/2 cup shredded cheddar cheese
• 1/2 cup shredded part-skim mozzarella cheese
• 1/2 cup fresh or frozen corn, thawed
• 1/2 cup chopped fresh tomatoes
• 1/2 cup chopped onion
• 1/4 teaspoon salt
• 6 flour tortillas (8 inches), warmed
• Optional toppings: shredded lettuce, salsa and sour cream