Inside Out Cheeseburgers
2 lb. ground beef
1-1/2 t. salt
3/4 t. black pepper
1/2 cup Dijon mustard
6 onions, sliced 1/2 in. thick
1 cup Kraft shredded cheddar cheese
1/2 cup sweet pickle relish (if desired)
6 hamburger buns
Combine first 4 ingredients in a large bowl; shape into 12 patties. Set aside.
Saute onions in a large non-stick pan.
Top 6 of the patties with onion, cheese, and relish; cover with the remaining patties and press and seal together.
Cook patties on grill or skillet for about 6 min. on both sides.