- Keep the rice warm.
- While the rice was cooking, heat the oil in a large saucepan over medium heat. Add the garlic and pepper stir-fry (or onion). Cook, stirring occasionally, until the vegetables soften and most of the liquid evaporates, 8 to 10 minutes.
- Add the tomatoes and cook, stirring occasionally, until slightly softened, about 2 minutes.
- Add the vinegar, cumin, fennel seeds, pepper sauce, and salt. Cook, stirring frequently, about one minute.
- Stir in the beans and bring to a boil.
- Reduce the heat and simmer, covered, stirring occasionally, until the mixture slightly thickens and the vegetables are very tender, about 25 minutes.
- Serve over the white rice.