Meanwhile, arrange half of the tortilla chips on an oven-safe platter or rimmed baking sheet. Spoon half the chicken chili over chips and top with 3/4 cup of the cheese. Repeat layering. Bake at 400° F for 8 minutes or until cheese has melted. Garnish with jalapeños, sour cream, guacamole, tomatoes and cilantro, if desired.