INGREDIENTS:
8 Slices Vidalia or other Sweet Onions(1/8-in thick)
1 tbs Balsamic Vinegar
AN Cooking Spray
1 lb Ground Beef, extra lean
1/4 tsp Salt
1/4 tsp Black Pepper, freshly ground
3 tbs Creamy Mustard Blend (Dijonnaise)
8 slices Rye Bread
1 cup Jarlsberg Cheese, reduced fat
INSTRUCTIONS:
Arrange onion slices on a plate. Drizzle vinegar over onion slices. Heat a large grill pan over medium heat. Coat pan with cooking spray. Add onion to pan. Cover and cook three minutes on each side. Remove from pan; cover and keep warm.
Heat pan over medium-high heat. Coat pan with cooking spray. Divide beef into equal portions, shaping each into a 1/2-in thick patty. Sprinkle patties evenly with salt and pepper. Add patties to pan. Cook 3 minutes on each side or until done.
Spread about 1 tsp mustard blend over 4 slices of bread. Layer each slice with 2 tbs of cheese, 1 patty, 2 onion slices, and then 2 more tbs of cheese. Spread about 1 tsp mustard blend over remaining bread slices. Place mustard side down, on top of sandwiches.
Heat pan over medium heat. Coat pan with cooking spray. Add sandwiches to pan. Place a cast-iron or other heavy skillet on top if sandwiches, or use a panini maker. Press gently to flatten. Cook 3 minutes on each side or until bread is toasted.
