Melt butter in 4-quart saucepan over high heat. Add sausage and tasso; cook until meat starts to brown, stirring frequently and scraping pan bottom well. Add chicken and continue cooking until chicken is brown. Stir in bay leaves, Poultry Magic and 1⁄2 cup each of onion, celery and bell peppers and the garlic. Cook until vegetables start to soften. Stir in tomato sauce and cook about 1 minute, stirring often. Stir in remaining onion, celery and green peppers and the tomatoes. Stir in stock and rice, mixing well. Bring mixture to a boil. Reduce heat and simmer, covered, over very low heat until rice is tender but still chewy. Stir well and remove bay leaves. Let set uncovered 5 minutes before serving.