Cook kielbasa in a large nonstick skillet over high heat, turning from time to time, until lightly browned, about 2 minutes. Transfer to a plate.
Add oil to the pan. Add onions, zucchini, bell pepper, chillies, garlic, cumin, oregano and salt; cook, stirring, until the onions are tender, 4 to 5 minutes. Stir in rice, beans and water; cook, stirring, until heated through, about 4 minutes. Add the reserved kielbasa and season with hot sauce. Serve hot.