I am so glad for this thread! We spend about $60-70 a week for me, dh, and 18 mo. old dd. My dh thinks I spend too much so I'm going to have him read the threads here and maybe he'll be a little more realistic from now on.
We stop CostCo for some things in bulk (including non-food items), the local Asian market for veggies, Trader Joes for some small things like animal crackers and soy milk/tofu, and the grocery store for "junk" foods that I can't find at the first three. I don't visit each store each week, but stock up, visiting about 2 of these places in a week. Off topic a bit but I do all our shopping for other things (like small appliances, clothes, or other non-food things) at Goodwill and BigLots! and Wal-Mart if all else fails.
The things we buy the most frequently are: fresh fruits/veggies, whole organic milk for dd, soy milk, tofu, dry pasta, brown rice, hard cheese, yogurt, butter (for making ghee), nut butters, whole wheat flour, sandwich bread, beans and lentils, canned tomatoes and spaghetti sauce, cooking oil, spices, and a few splurges like cake or cookie mix, mac and cheese, frozen waffles, and morningstar farms products.
Thanks again for sharing this! I agree that good food should be one of the most important things we spend money on, for the sake of our health and well-being.