I would run out of dried staples like flour, beans, and rice, long before anything else. We would have enough meat on the hoof (or chicken foot as the case may be), to sustain us for a very, very long time and enough pasture to sustain the animals without needing supplemental feed from a store. We also grow enough veggies and have seeds saved that we would be fine on greens for an indefinite time as well considering that we can garden here year-round. Of course, we would have plenty of eggs as well and again, enough pasture and forage to sustain our egg-layers that we wouldn't need to buy them feed. We even own part of the dairy cow next door so if we were still able to continue milking her, we would have milk, butter and even some simple cheese until she dries up.