M.B.
I will frequently buy 5-10 lbs of ground beef at a time and cook it all up... I then put the cooked/drained ground beef in freezer bags in meal size portions and put it in the freezer.
While it isn't a fully ready made meal, it DOES make meal prep much easier to just pull out a bag of ground beef already cooked and ready for soup, casserole, sloppy joes, etc......
I also will boil up a couple of chickens when they are cheap and take the meat off the carcass, cut into proper size (or shred), and freeze in 2-3 C amounts... again, makes meal prep so much quicker!