How to Make It
Heat oil in a 5-quart saucepan over medium-high. Add onion. Cook, stirring occasionally, until just tender, about 2 minutes. Add garlic and red pepper, and cook, stirring frequently, until onion is tender, about 3 minutes.
Add stock, salt, and potatoes. Bring to a boil, then reduce to a steady simmer. Simmer 10 minutes or until the potatoes are just tender enough to be pierced with a fork but still firm.
Add green beans, cover, and simmer until very tender, about 6 minutes. Use a slotted spoon to transfer the potatoes and green beans to a serving dish. Bring the liquid to a boil, and cook until reduced to 1 cup, about 6 minutes. Spoon over the vegetables, and gently fold to mix. Serve hot.