I used the meat grinder attachment for our Bosch mixer and quickly ground up all the meat. There was this whole large cookie sheet plus half of another one. Because I couldn't re-freeze it raw, I chose to fry it all up and freeze it in meal size portions. All told, this project took me 90 minutes (not hands on the whole time) but will save me LOTS more time over the next 3 months.
I ended up with 12 packets of cooked ground beef for the freezer (approximately 1.5lb each), not including the amount we reserved and mixed with my home canned spaghetti sauce for supper that night. I chose not to season the meat when I fried it up so that I could easily use it for any purpose, seasoning it at the time of incorporation into a meal.
These little packets will make suppertime a breeze on busy nights... they'll defrost quickly due to their shape, and I can pop them into casseroles, chilli, stroganoff, pastas, tacos, etc. Such a time saver!
We've ground our own meat many times before and I love doing it. It's a great way to control what goes into the finished product (quantities of fat, cuts of meat, etc) and we have total control over cleanliness. No fillers, no nasties... just lean, healthy meat.
We've also ground our own meat for sausage making which is wildly successful and frankly really easy, not to mention D.E.L.I.C.I.O.U.S. But... that's another post for another day :)