Serve as a lunch or dinner with a side salad.
Preheat oven or grill to 350°. If using a grill, clean and brush grill grates with oil to prevent sticking.
Heat naan bread on grill until warm, about 3 minutes per side, or in the oven on one side only for about 3 minutes. Remove and set on a large cutting board or platter.
Divide mozzarella among naan bread slices and top with chopped chicken, cilantro, jalapeno (if using), and bell pepper.
Return to grill or oven and bake another 10 minutes or until the cheese is melted and bubbly. Cut into large pieces and serve immediately drizzled with remaining sauce that was set aside from the chicken recipe.