In a mixing bowl, add cubed pieces of chicken, flour, black pepper, Creole seasoning, and garlic powder. Combine making sure that the chicken pieces are well coated.
In a large skillet, over medium-heat, melt the butter. Add the seasoned chicken and pan-fry until chicken is browned. Carefully pour the Worcestershire mixture into the skillet. Bring the sauce to a boil then lower heat to Medium-Low and continue to cook until chicken is completely cooked through.
Remove the skillet from heat, place chicken on a plate and top with the sauce. Garnish with chopped green onions and serve with fresh, hot French bread. Enjoy!