Ingredients:
2 lbs ground beef
1 1/2 teaspoons salt
3/4 teaspoon black pepper
1/4 cup Dijon mustard
6 onions, slices 1/2-inch thick
6 slices sharp cheddar cheese
1/2 cup sweet pickle relish
6 hamburger buns
Directions:
Combine first 4 ingredients in a large bowl; shape into 12 patties. Set aside.
Saute onion in a large nonstick skillet coated with cooking spray 10 minutes or until tender. Top 6 patties with onion, cheese, and relish; cover with remaining 6 patties, pressing edges together to seal. Cook patties on grill or skillet around 6 minutes on each side or until no longer pink. Serve in buns with desired toppings.
Servings: 6
Time preparation: 20 min.
Time total: 42 min.