BUY SEEDS AND PLANT THEM

If you live in a situation where it is plausible, GO BUY SEEDS AND PLANT THEM. They are still at the stores, but they will disappear soon enough. Garden vegetables will not provide sufficient calories quickly enough to prevent you from losing weight. But they can provide sufficient nutrition to keep you from being malnourished, which is a big problem especially if you have young children. Here is all you need, all of which are still available at lowe's / home depot: A shovel, a pick axe (if you have particularly hard soil). If you have deer, you will also need >= 6 ft fencing (if you have deer) + t-posts + something to drive them with (5lb hammer is sufficient, sledge is better, post driver is even better). Recommended plants: 1) Kale (can be planted as soon as the soil is thawed enough to dig in, grows easily, pick leaves from bottom, very nutritious, very compact @ 2' x 2', lacinato and black magic taste the best, but all varieties will work, can throw some leaves into a bean soup or steam or make a salad), 2) zucchini (productive, quick, compact @ 3' x 3', can eat steamed, fried, baked, or in bread), 3) peas (can be planted as soon as the soil is thawed, provides lots of carbs, can be used in soup or steamed, can be dried for indefinite storage, will produce all season if picked, needs a trellis/fence). I wouldn't waste time with single-harvest / lower nutrition plants such as carrots, onions, lettuce, etc. If you want to hedge for a longer time period, you could consider winter squash (I recommend butternut and blue hubbard) and/or planting dried beans you might have in your food storage. Those will take the rest of the season before you can harvest them, can't be planted until after the last frost (but can be started inside 3 weeks before then) and won't grow if you live in a particularly northern climate, but will keep (dried beans keep indefinitely, winter squash will store for ~6 months in a cool dry place).