All you need is a mug to cook one of these sweet and savory recipes. Because these meals are mixed, heated, and served in that single dish, there's little prep time and practically nothing to clean. The 60 "mug cakes," many vegetarian or vegan, include Tomatoes and Capers; Spiced Tofu, Rice, and Walnut; Shrimp and Zucchini; and Chocolate, Coconut, Raisin and Banana Souffl .