This stew is also yummy over rice or macaroni (kids love "chili-mac"). If you like, top each serving with a little grated cheese.
In a large saucepan, heat the oil over medium heat. Stir in the pepper, onion, and garlic. Cook for 5 minutes or until soft. Stir in the pork. Add the tomatoes, beans, broth, chili powder (if using), salt, and pepper. Simmer, stirring occasionally, for about 20 minutes or until bubbling and hot.