This simple and nutritious side dish calls for kale, Swiss chard, and Brussels sprouts along with onions, beans, and Mexican seasoning. Spicy Beans and Greens Prep time: 15 mins Cook time: 15 mins Total time: 30 mins Serves: 4 to 6 (makes about 6 cups) Ingredients 1 medium yellow or white onion, chopped (about 2