Ingredients

2 pounds ground beef4 slices Swiss cheese1 small onion, finely chopped2 to 3 pickled jalapeno peppers, seeded and finely chopped4 hamburger buns, split and toasted Optional: Lettuce leaves and ketchup

Preparation

Shape beef into 8 thin patties. Top 4 patties with cheese, onion and jalapenos. Top with remaining patties; press edges firmly to seal.

Grill, covered, over medium heat or broil 4 in. from the heat until a thermometer reads 160° and juices run clear, 8-9 minutes on each side. Serve on buns. If desired, serve with toppings.