Bacon-Stuffed Burgers

Yield: 8 servings

4 slices bacon
1/4 cup onion, chopped
1 can mushroom pieces, drained and finely chopped
1 pound lean ground beef
1 pound bulk pork sausage
1/4 cup Parmesan cheese, grated
1/2 teaspoon pepper
1/4 teaspoon garlic powder
2 tablespoon steak sauce

Cook bacon until crisp. Remove bacon and discard all but 2 t ablespoons drippings. Saut