Ingredients

2 pounds hamburger
2 eggs
1/4 cup rice
1 cup ketchup
1 cup zesty Italian dressing
1 cup Miracle Whip
1 tablespoon Worcestershire sauce
mozzarella cheese
button mushrooms, sliced

Instructions

Mix hamburger, eggs and rice well. Form into large, thin patties and place in an air-tight container. Whisk together ketchup, dressing, Miracle Whip and Worcestershire sauce. Add mixture to container with patties and marinate overnight. Take one patty and top with 1 tablespoon mozzarella and mushroom slices. Top with another patty and thoroughly seal edges together. Brown each side of patties, then place in slow cooker. Cover with marinade sauce and simmer on low for 3-4 hours. The burgers can also be grilled if you prefer.