French spinach is a classic side dish that combines flavorful spinach with creamy bechamel sauce and crispy breadcrumbs. While it may seem like a dish that has no synonyms, there are actually quite a few phrases that can be used interchangeably with the term "French spinach". Some similar terms to describe this dish include spinach gratin, creamy spinach casserole, baked spinach, and spinach souffle. All of these refer to dishes that combine spinach with a rich, cheesy sauce and often include breadcrumbs or other toppings for added texture. However, no matter what you call it, French spinach is always a delicious and comforting dish that is perfect for any occasion.