Warm up your winter evenings with this hearty vegetable dish.
- 2 teaspoons vegetable oil
 
- 1 medium onion, chopped
 
- 1 medium green bell pepper, chopped
 
- 3 cloves garlic, finely chopped
 
- 1 (14½-ounce) can diced tomatoes
 
- 2 cups fresh or frozen corn
 
- 1 (14½-ounce) can low-sodium vegetable broth
 
- 2 teaspoons chili powder
 
- 2 teaspoons dried oregano
 
- 1 (15-ounce) can black beans, drained and rinsed
 
- 1 (15-ounce) can red beans, drained and rinsed
 
- 8 tablespoons fat free sour cream (optional)