Sure, you've experienced green bean casserole at countless holiday gatherings. But green beans aren't the only beans with casserole potential. Be original at your next potluck event with a different kind of bean casserole. Imagine the oohs and ahs when you present Caribbean Black Bean Casserole with Spicy Mango Salsa. It's not just a side dish; it's a colorful entrée. For a complete vegetarian meal, whip up this Red, White and Black Bean Casserole, or enlist your slow cooker to do the work for a Cornbread and Bean Casserole that cooks up with its own yummy bread topping.