In my exprience zucchini/summer squash is not a starchy vegetable. Zucchini doesn't raise my blood sugar and as an insulin dependent diabetic that very important. I eat tons of zucchini/summer squash from the time it's in season until the absolute last one is picked from the vines. It's great roasted, grilled, dried for chips, in stews, used as lasagna noodles and on and on and on. Be wary of winter squashes though. Most of them do have a starchier profile, but still loaded with lots of good nutrients.