Martha Stewart on Instagram: "Martha’s mushroom-Gruyère tart makes a wonderful brunch entrée or vegetarian dinner. The savory dish has a crisp, cracker-like whole-wheat and olive oil crust that includes tahini, giving the tart a complex flavor. The filling is a mix of mushrooms sautéed with shallots and garlic, then mixed with Gruyère and eggs, and baked. Get the recipe at the link in our bio."