Spray a large saucepan or Dutch oven with a few sprays of cooking oil spray. Add onion and saute over medium-high heat until soft and just starting to brown. Add ground turkey or sausage;cook over medium high heat, breaking upmeat with a spoon, until cooked through, about 6 minutes. Add chili powder, oregano, cumin, mustard, garlic, beans, tomatoes, and broth. Bring to a boil over high heat and then reduce the heat to a simmer. Cover and let simmer for 20 minutes.
Garnish with olives and green onions or cilantro and serve immediatly.