In a medium Dutch oven, heat oil over medium-high heat. Add chicken; cook until browned on all sides. Add onion; cook until tender, about 3 minutes. Add garlic; cook until fragrant, about 1 minute. Add bell pepper; cook until tender, about 5 minutes. Stir in oregano, salt, cumin, and pepper.
Add squash, broth, and tomatoes; bring to a boil. Reduce heat to medium; add beans. Cover and simmer until chicken reaches an internal temperature of 165°, about 30 minutes.
Remove chicken from pan. Using 2 forks, shred chicken, and place back in soup. Garnish with parsley, if desired.
Recipe by Southern Lady Magazine at https://www.southernladymagazine.com/chicken-butternut-squash-soup-recipe/