quesadillas recipe

Ingredients 4 large flour tortillas 2 cups shredded cheese (cheddar, Monterey Jack, or a blend) 1 cup cooked chicken, beef, or vegetables (optional) 1/2 cup diced onions 1/2 cup diced bell peppers 1/2 cup chopped fresh cilantro 1 tablespoon olive oil or butter Salsa, sour cream, and guacamole for serving