A hamburger patty is first and foremost - just ground cow ... it is just formed into a patty. Thaw it and you can reform it any way you like for ... meat balls, meatloaf, chopped/broken up for meat sauces, chili, sloppy joes, slum gullion, hamburger strogonoff, stuffed tomatoes or cabbage, beef version of Sheppard's pie, like jabbur said - salisbury steak, flour and bread them and you can make "mock" chicken fried steak, and then there is glop, you can add browned hamburger and onions to scalloped potatoes and baked ... and gosh - use your imagination!
"It ain't what you don't know that gets you in trouble. It's what you know for sure that just ain't so." - Mark Twain