Zucchini and Summer Squash Sauté

In summer, when these green and yellow squashes are plentiful and cheap, there is no lovelier vegetable to serve with fish. You can also make a simplified ratatouille of them by adding some ripe tomatoes and eggplant. Summer squash, sometimes called yellow gooseneck, is, like zucchini, best when it is about six inches long. The older it gets, the more seedy it becomes, but if it is too small, the flavor is almost nonexistent.