Chicken Fajita Quesadillas

Bahan-bahan (1 porsi)

• 2 flour tortillas
• 1 teaspoon butter
• ⅔ cup shredded cheese: cheddar, monterey jack, or pepper jack
• ¼ cup chopped or thinly sliced cooked chicken
• 2 tablespoons thinly sliced sauteed bell peppers
• 1 tablespoon thinly sliced sauteed yellow onion