Sorry, we were so hungry, we ate these before I remembered to take a picture. These turned out great. Its just a new twist on a traditional burger.
1/2 onion, diced
5 oz small mushrooms
1 lb extra lean ground beef
1/2 cup bread crumbs
1 teaspoon Parsley
1 Tablespoon tomato puree
Mix onion and mushrooms in food processor. Add beef, breadcrumbs, tomato puree, and parsley. Process for a few seconds. Divide into 4 pieces and shape into 4 burger patties. Cook in non-stick pan for 12 -15 minutes, turning once.
Serving option: (1) on a bun, as a traditional burger, or (2) with beef gravy and mashed potatoes - my personal favorite