Ground beef

So what are some good recipes that use ground beef? My repetorie consists of meatloaf, meatballs, cheeseburger soup, hamburger gravy, sloppy joes, and that's about it.  I found, by the way, a good source of  beef that isn't too expensive.  Good, as in not fed corn, corn, corn, and antibiotics and animal byproducts.  Wood's Meats from Sandpoint doesn't make a big deal out of the fact that all of the animals they use are local, mostly grassfed, and not fed all that junk.  So they aren't cheap, but they aren't as expensive as organic.  But the meat is good.  This has been underneath my nose for 10 years and many people already know about it.  But I finally figured it out.