Wow... I am jealous. Are these grass-fed cows?!
Anyway, we eat a lot of beef here (purchase 1/4 cow 2-3 times a year). I use my crockpot A LOT! ;)
you can pre-make a ton of meals with all that ground beef:
meat loaf
pot pies
taco meat
sausage patties
asian lettuce wrap filling
Italian red sauce & meat
raviolis
meatballs (for soup, pasta, or sandwiches)
roasts & steaks: I usually just crock pot them since grass-fed is lean. From the left overs, I do pot pies, casseroles, sandwiches, etc.