I grew up in a VERY carnivorous home. There was some form of meat at every dinner, be it pork, chicken, or beef. That's probably fairly typical of a lot of American families, but meat is expensive. It's also best used sparingly; a little is good for your health, but a diet rich in meat can quickly increase your cholesterol and your body weight!
We purchase our ground beef in big economy packs, and then divide it up in the freezer. When we divide it up, though, we put it in sections of maybe 1/3 of a pound apiece. We've found this to be plenty to add to most recipes that call for a full pound of ground beef - stroganoff, spaghetti, casseroles, etc. (It obviously won't work well if your recipe is very meat-centric, like meatloaf or hamburgers.)
Cutting back on the amount of ground beef we use has saved us a lot of money, and makes our diet just a little bit healthier, as well.
For more tips & advice, visit Works-For-Me Wednesday over at Rocks in my Dryer!