Heat the oil in a large Dutch oven over medium-high heat. Add the onion and bell pepper and sauté for 5 minutes, stirring occasionally.
Add the minced garlic and stir around for just a few seconds.
Add the chopped green onions and ground chicken to the pot and break it up with a spatula. Add the salt, garlic powder, and chili powder and stir. Allow the chicken and vegetables to cook for about 5 minutes.
While the chicken is cooking, blend 1 can of the rinsed and drained white beans with 1 cup of the chicken broth. This mixture will make the chili have a creamy consistency.
After the chicken and vegetables have been cooking, add the blended white beans, the drained and rinsed white beans, fire-roasted tomatoes, and the remaining 2 cups of chicken broth. Bring the liquid to a boil and turn down the heat to simmer.
Simmer for about 30 to 40 minutes. Serve immediately and enjoy!
Optional Garnishes: Fresh avocado slices, scallions, cilantro, and gluten-free Siete tortilla chips.