Add the ground chicken to a large skillet over medium heat.
Cook for 7 to 9 minutes, breaking the chicken into small crumbles as it cooks. Continue cooking until no pink remains
Add the chopped peppers and cook for 4 to 5 minutes, stirring occasionally, until they begin to soften.
Add the chili seasoning and stir until the chicken and peppers are evenly coated.
Pour in the jar of tomato sauce and stir well.
Add the drained and rinsed kidney beans, pinto beans, and white beans. Stir until combined.
Reduce the heat to low and simmer for 20 to 25 minutes, stirring occasionally, until the chili is hot, thick, and the peppers are tender.
Remove from the heat and serve hot.