Spicy Vegetarian Chili

Name: Spicy Vegetarian Chili
Ingredients: 1 medium yellow onion, chopped; 1 (28-ounce) can diced tomatoes, with their liquid; 1 medium green bell pepper, cored, seeded and chopped; 1 medium red bell pepper, cored, seeded and chopped; 1 large carrot, chopped; 1 stalk celery, chopped; 3 cups cooked red kidney beans, drained; 1 1/2 cups cooked black beans, drained; 1 1/2 teaspoons salt; 3 cloves garlic, finely chopped; 2 teaspoons ground cumin; 2 tablespoons olive or canola oil; 1 tablespoon chili powder; 1 to 3 tablespoons finely chopped chipotles in adobo 1 tablespoon dried oregano