One of my favorite cookbooks is Nava Atlas's Vegetarian 5 Ingredient Gourmet. While not exclusively vegan, most recipes are either vegan or easily made vegan. The recipes are delicious and easy, and there are suggested menus for most of them. I turn to this book frequently for both family meals and entertaining.
My favorite easy meal from this book is black beans with garlic and lemon. That's basically all that is in them (well, olive oil, water, s & p). I have tried adding other things, but the simplest way is the best. With microwaved sweet potatoes (with Earth Balance and Frank's hot sauce), fresh guacomole, and a green salad, dinner is on the table in 15 minutes!
(No picture needed - we all know what black bean soup looks like!)