Nah.
Plant zucchini.
A few zucchini plants, well watered, and the average
family will have more zucchini than they can stand.
Of course they do not provide protein and other nutrients -
But hey, it's a starting point.
I planted some yesterday.

A one-cup serving of raw zucchini contains:
Calories: 62.
Protein: 2 grams.
Fat: Less than 1 gram.
Carbohydrates: 14 grams.
Fiber: 8 grams.
Sugar: 7 grams.
Not worth the garden space.
They will overtake a garden in no time.
We have a vegetable garden, an herb garden, some hens, and we tap our sugar maple tree for syrup. The hens eat whatever we throw away, and our grass clippings, fall leaves and deadfall get mulched or composted.
We also forage for mushrooms, hunt and fish when in season.
In a real food shortage, the big game (white-tail deer) would probably disappear in the first month, so I want to learn to trap and prepare small game - which should remain plentiful.
Right now we are far from self-sufficient, but it’s a start.