When they are that small, you can cook them without peeling. Cut them up and cook them as you would any squash.
But this is my favorite use for them: Cut off the top inch of the stem end and hollow out the squash, leaving walls about 1/2" thick. Take the squash that you removed and add seasoned meat, breadcrumbs, other veggies ... whatever strikes your fancy. Stuff the squash "bowl" and bake at 350 until done (depends on what you stuffed it with). Top with grated or shredded cheese the last few minutes of baking. If you ever make stuffed bell peppers, you can do the same thing with the squash.
/johnny
2) Use the same as zucchini, peeled or unpeeled; raw or cooked. Even stuffed.
I've been eating & growing them all my life; and love them. I prefer the light green tinted (Bennington's I think it is) to the white, yellow, or dark green (those are more globular) ones; or to the 'star' varieties.
If they mature, they get big & hard-shelled, and can be saved for seed, as they are an heirloom; just be sure that they are well separated from other squashes, or they will freely cross...or hand-pollinate a couple of flowers, then put a bag over them to keep bees out.
I have two like this (1 is about 8" across, and 3" deep) that have kept just sitting in the kitchen since last September, which I'll be 'harvesting' the seeds from in another couple of weeks.
I like them best prepared simply.
A quick dice, steam, and toss with butter and salt!
If they are smallish, cut them in half, brush with olive oil..sprinkle with your spice of choice and grill them.