If you decide that you like it, Julia, you may want to try its close relative: orach.
I had lambsquarters twice last week but I could have been enjoying them for several weeks now. With orach, I allow a mother plant, in an out-of-the way corner, to go to seed every year so that it self-sows. Orach will be the very first vegetable harvested each spring from my garden.
It is sometime called "mountain spinach" but I don't really know how the "mountain" enters into the name. Those early orach plants are very tender and useful even in a salad. All 3, orach, lambsquarters and spinach are fairly closely related. They all have about the same flavor and, I like 'em!