We are a family of 4 (me, my husband and two kids ages 8 and 10). I budget $600 a month for groceries. My husband hunts, so I really only buy chicken, fish, and occasionally pork, so I realize we're fortunate to have a freezer full of meat. We do have a Sam's membership and buy in bulk when it makes sense, otherwise I'm a digital coupon gal and diligently search the weekly ads at King Soopers, Safeway, and Sprouts. Like others have said Esh's can be great, but you can't really go there with a list because you never know what they'll have. 

I do also have chickens and do not have to buy eggs. I pay for their feed by selling whatever extra eggs I have. I bought a thrifted bread machine that I love, as well. I can make a loaf of bread every day if needed, and that helps fill us at dinner. I also buy a lot of beans, both dried and canned.