Pineapple-Gruyere Burgers

• 4 1/2-inch thick rings of peeled and cored pineapple
• vegetable oil
• 1 1/2 lb. freshly ground chuck
• salt and pepper
• 4 (1/2-inch thick) slices Gruyere cheese
• 4 burger buns
• 2 c. mixed baby lettuce
• 8 thin slices red onion
• 12 thin slices tomato

1. Light a grill or preheat the broiler.
2. Grill pineapple on an oiled rack or broil until golden brown (3 minutes per side). Shape the ground chuck into four (3 1/2-inch) patties and season on both sides with salt and pepper.
3. Grill the burgers on an oiled grill rack or broil for 4 minutes.
4. Turn and cook for 3 minutes.
5. Place a slice of Gruyere cheese on each burger and cook until the cheese is melted, 1 minute.
6. Grill or toast buns.
7. Place burgers on buns and top each with a pineapple ring.
8. Mound baby lettuce. Serve with red onion and tomato slices.

rings, vegetable oil, freshly ground chuck, salt, gruyere cheese, buns, baby lettuce, red onion, thin slices tomato

Taken from www.cookbooks.com/Recipe-Details.aspx?id=751524 (may not work)