Bistro Cheeseburger

Ingredients: 1-1/2 lbs. ground beef 4 slices sweet onion (1/2-inch) Vegetable oil 8 slices Swiss process cheese food 1/4 cup mayonnaise 1 tsp Dijon-style mustard 4 crusty rolls, split, toasted Romaine lettuce, tomato slices 1. Lightly shape ground beef into four 3/4-inch thick patties. Brush onion with oil. Place patties in center of grid over medium, ash-covered coals; arrange onion around patties. Grill, uncovered, 13 to 15 minutes to medium (160°F) doneness, until patties are not pink in center and juices show no pink color and onions are tender, turning occasionally. Season with salt and pepper after turning. About 1 minute before patties are done, top each with 2 cheese slices. 2. Combine mayonnaise and mustard; spread on top halves of rolls. Serve burgers and onion in rolls with lettuce and tomato. Makes 4 servings. "Beef recipes collected from www.www.beefitswhatsfordinner.com. The National Cattlemen's Beef Association."