Hamburgers with Grilled Red Onions

• 1 lb. (450 g) extra-lean ground beef
• 2 Tbsp."Bold" Barbecue Sauce
• 1 Tbsp. Dijon mustard
• 1 clove garlic, minced
• 4 red onion slices (1/2 inch thick)
• 4 Cheddar Cheese Slices, torn
• 4 hamburger buns, split
• 1/4 cup mayonnaise
• 4 lettuce leaves
• 1 tomato, cut into 4 slices 

To Make:

1. Heat barbecue to medium heat.

2. Mix ground beef, barbecue sauce, mustard and garlic just until blended; shape into 4 (1/2-inch-thick) patties.

3. Place meat patties and onion slices on barbecue grate. Grill 5 to 6 min. on each side or until burgers are done (160°F) and onions are tender. Remove onions from barbecue. Top burgers with cheese pieces; grill 1 min. or until melted. Meanwhile, toast cut sides of buns on barbecue.

4. Spread buns with Miracle Whip; fill with lettuce, tomatoes, cheeseburgers and onions.