Heat olive oil in a large pot over medium-high heat. Add the bell pepper, onion, celery, carrot, and jalapeño pepper. Cook until softened, stirring occasionally, about 10 minutes.
Step 2
Add the chili powder and cumin; stir and cook for another minute or so.
Step 3
Add oregano, salt, pepper, beans, tomatoes, and broth. Simmer over low heat for 30 minutes.
Step 4
Add cooked quinoa, and cook for 15 minutes more. Add more broth as necessary for desired consistency. Chili can simmer for up to an hour, if you like.