Arroz mamposteao is a traditional Puerto Rican fried rice made with aromatics like onions, peppers, and garlic and tossed with stewed beans and sweet plantains. It’s bursting with Caribbean flavors and is the perfect dish to make with leftover rice. This dish is a staple in Puerto Rican cuisine. Pair it with your favorite side dishes like tostones and avocado for a delicious lunch or dinner the whole family will enjoy!