Ingredients
- ½ pound lean ground beef
- ½ pound lean ground turkey
- ½ cup onions, minced
- ⅓ cup seasoned bread crumbs
- 1 large egg, beaten
- 2 tbsp tomato paste
- 1 tbsp black pepper
- 1 tbsp Worcestershire Sauce
- 1 tbsp red wine vinegar
- ¼ tsp mustard powder
- 5 ounces sliced mushrooms
- 1 ¼ cup beef broth