Get together with some friends and cook dinner at someone's house every once in a while. This way you don't wind up with leftovers but can still take advantage of bulk beef.
edit: OK, I just read about your issues with celiac, and I can sympathize as my mother has been diagnosed as well, as well as several other family members. So far I have been able to dodge that bullet, though
You can definitely still do celiac dinners like that and be OK. Just do this:
1. Instead of having one person cook everything, have everyone bring something, you know... like a potluck.
2. Talk to some of the people who are cooking, you might be able to talk to someone making something that is already naturally GF. See if you can have that person(or people) tweak things a bit to ensure it remains GF.(for example, mashed potatoes or cream corn)
3. Whenever you can, separate some for yourself before everyone else gets a cut at the food. This prevents cross contamination.
My family has potlucks ALL the time, and we always manage to have good success with keeping things GF. Hell, we've even had 100% GF potlucks
