Heat the oil in a large pot over medium-heat. Stir in the onion, peppers and garlic. Cook for 5 minutes, or until the onions become translucent. Add in the ground turkey and cook until lightly browned. Drain if needed. Stir in seasonings.
Next add in the chicken broth, tomatoes and beans. Add corn if desired. Bring chili to a boil and then reduce the heat and simmer for at least 30 minutes. The longer the better. Taste and add more salt and seasonings if desired.
Ladle turkey chili into bowls and top with your favorite toppings.
To cook in slow cooker: Simply follow the instructions up until adding the seasonings. Then place the remaining ingredients in the slow cooker with the cooked turkey. Cook on high for 3-4 hours or on low for 6-8 hours.