Heat olive oil in a large pan over medium heat. Add onion and garlic and saute for 3 minutes, stirring frequently. Add bell pepper to pan and saute for an additional 7 minutes, or until veggies begin to soften.
Add remaining ingredients and stir to combine. Increase heat and bring to a boil. Lower heat and simmer, stirring frequently, for 10 minutes.*
Adjust seasonings if necessary.
Serve immediately with optional toppings OR allow chili to cool completely before refrigerating.
Notes
*If you have the time, simmer on the stove for as long as possible - the flavors only get better with time.