Nutritional Information Per Serving Calories: 381 Fat: 13.1g Protein: 36.3g Carbohydrates: 28.1g Dietary Fiber: 1.7g Cholesterol: 84mg Iron: 4.2mg Sodium: 655mg Calcium: 212mg Serves This recipe serves 4 adults Time To Cook Under 30 minutes. Ultimate Mexican Chili-Cheese Burgers           Ingredients 1 pound freshly ground round hamburger 1 cup chopped and seeded plum tomato 1/4 cup minced fresh cilantro 1 tablespoon chili powder 2 teaspoons minced and seeded jalapeño pepper 1/2 teaspoon salt 1/2 teaspoon dried oregano 1/2 teaspoon ground cumin 1/4 teaspoon pepper Cooking spray of your choice 4 (3/4-ounce) slices Monterey Jack or cheddar cheese 1/4 cup fat-free sour cream 4 (1 1/2-ounce) hamburger buns 4 iceberg lettuce leaves 8 (1/4-inch-thick) slices beefsteak tomato Grilled onions, optional  Directions     Combine first 9 ingredients into a bowl and stir well. Divide mixture into 4 equal portions, shaping into 1/2-inch-thick patties. Prepare grill. Place patties on grill rack coated with cooking spray and grill 6 minutes on each side or until done. Place 1 cheese slice on top of each patty; cover and grill an additional minute or until cheese melts. Spread 1 tablespoon of sour cream over top half of each bun, and set aside. Place patties on bottom halves of buns; top each with lettuce, tomato, onions (if desired), and top half of bun   © 2003 Roberts Food Center. Designed and Hosted by The Computer Company, Inc.