Cook bacon in a Dutch oven over medium-high heat until crisp. Add pork; sauté 5 minutes or until lightly browned. Add chicken; sauté 2 minutes. Add broth and 1 cup water; bring to a boil. Cover, reduce heat, and simmer 50 minutes or until pork is tender.
Remove chicken from pan; shred with 2 forks. Return chicken to pan; add mashed potato, onion, green beans, and remaining ingredients. Bring to a simmer; simmer, uncovered, 45 minutes or until slightly thickened, stirring occasionally.