1. Leave root ends of shallots intact, and thinly slice lengthwise.
2. Heat oil in large skillet over medium-high heat. Add shallots and radishes, and sauté 5 minutes, or until shallots begin to brown. Add green beans, and sauté 3 minutes more. Add orange juice, and season with salt and pepper, if desired. Cover, reduce heat to medium, and simmer 6 to 7 minutes, or until green beans are tender.