In a small bowl, whisk together egg and Worcestershire. Add egg mixture to meat mixture, and mix well with your hands. Shape mixture into 12 palm-size meat balls. Set aside.
Fill a 10-inch cast-iron stockpot or Dutch oven with 2 inches of water. Bring to a boil; reduce heat to a medium. Add roux; cook, stirring constantly, until melted. Reduce heat; add meatballs, garlic, remaining onion, remaining bell pepper, and water to cover meatballs. Sprinkle with remaining 1 teaspoon of Slap Ya Mama Original Blend Cajun Seasoning.; stir carefully. Cook over medium heat for about 1½ hours, stirring occasionally. Stir in green onion and parsley during last 10 minutes of cooking. Serve hot cooked rice.
In a 8-quart stockpot, heat oil over medium heat for about 5 minutes; add flour stirring to combine. Cook stirring frequently, until peanut butter roux forms, about 20 minutes.