Mushroom Bacon Burgers

4 slices bacon
onion, chopped or pureed
1 small can mushrooms, drained and chopped
1 lb. ground hamburger
1 lb. pork sausage
1/4 Cup Parmesan Cheese
Black pepper
2 Tablespoons Worcestershire sauce

Cook bacon and drain on paper towel. Set aside. Cook onion and mushrooms in bacon grease. In mixing bowl, add hamburger and sausage. Blend together. Sprinkle with cheese, pepper and Worcestershire sauce. Add onion, bacon and mushrooms. Combine together. Form into patties and grill.