I have often purchased the Costco package of hamburger meat, only to then have to figure out what to do with it. I've tried a number of things in the past. Sometimes I've divided it up into packages and frozen them, raw. Sometimes I've made meatballs of the whole thing, cooked them, and frozen them. I've occasionally even tried to use the whole thing up, which is a bit on the difficult side.
One of the problems is that I really like hamburgers, whereas Carol doesn't care for them very much. Another problem is that while I like meatballs, I find them a bit of a pain to make in quantity.
I finally hit on the solution, which has been working quite well for us.
I buy the package on Friday, and take out enough to make hamburgers for myself all weekend. At some point during the weekend, I use some more to make a dish of sloppy joes, which we both like. The rest I fry up with onions, garlic, and some spices, which I then freeze in about 3/4 pound packages.
Then we have spiced, cooked hamburger meat, that we can throw into a pasta dish to add a quick bit of flavor and protein, whenever we want a fast, easy dish.
Then, and this is the hard part for me, I wait until we've used up all the frozen hamburger before I purchase another package so I can have another weekend full of fresh hamburgers.
I usually just fry up some onions and garlic, and then throw the hamburger in with whatever spices I want. I'll often toss some wine in once the meat has browned, and maybe some soy sauce.
I also drain a bunch of the fat off, so it's a not too-unhealthy addition to any other dish.
Keeping things like this around the house help me keep cooking when I'm tired in the evening, instead of just giving in and ordering out.