In a Dutch oven heat the olive oil on medium heat. Add the onion and cook for 5 minutes until the onion turns translucent.
Add the green pepper and cook for 2-3 more minutes.
Add the garlic, chili powder, cumin, chipotle chili pepper, and sugar and cook for 1 minute.
Add the black beans, kidney beans, and petite diced tomatoes along with a pinch of salt and pepper to the Dutch oven.
Add the tomato sauce, vegetable broth and frozen roasted corn. Stir everything together.
Allow the chili to come to a boil by turning the heat to medium/high. Then cover and reduce the heat and allow to simmer for 15 minutes (at least).
Garnish the chili with cheese, avocado, sour cream or fresh cilantro.