In a large bowl combine the ground beef, onion soup mix, Worcestershire sauce, steak seasoning, egg, and bread crumbs.
Mix until combined and divide into 4 patties.
In a skillet, brown beef patties over medium-high heat (about 2-3 minutes per side).
Once browned, place beef patties in the bottom of your slow cooker.
In a bowl, combine the cream of mushroom soup, water, and brown gravy mix. Mix well. Pour the gravy mix over the beef patties.
Cover the slow cooker and cook on high for 3-4 hours or on low 5-6 hours.
Serve warm, garnished with fresh parsley, if desired.
