In a large nonstick pan, over medium-high heat, saute the chicken for 4-5 minutes per side until cooked through. Remove chicken. Let cool slightly, cut into cubes. Set aside.
Heat olive oil in pan. Add onions and cook about 3 minutes, until soft. Stir often. Mix in garlic, oregano, cumin, coriander and white pepper. Cook for 1 minute.
Stir in broth and potato. Bring to a boil, reduce heat and simmer until potato is tender, about 10 minutes.
Add the cooked chicken, hominy and beans. Simmer for 10 minutes.