They like tomatoes, peas, and so on, but the younger ones don’t care for the peppers much. We don’t grow corn, but they all like that. Maybe I’ll try squash next year; last year, people around the area were saying that their squash just didn’t get squash on it.
Perhaps your area has a shortage of crosspollinators. I think it’s sort of yucky to pollinate the female zucchini blossoms so I back away from that stuff. We’re getting enough zucchini and everything else, for that matter.