1In 8-quart pot, heat 6 cups water to boiling. Add gizzards, seasoned salt, parsley, garlic powder, onion powder, thyme, black pepper, paprika, red pepper, bell pepper, onion and garlic. Heat to boiling; reduce heat. Simmer uncovered 1 hour, stirring occasionally. Stir in sausage. Cover and simmer 1 hour, stirring occasionally.
2Meanwhile, in heavy 2-quart saucepan, heat oil over high heat. Stir in flour; reduce heat to medium. Cook 15 to 20 minutes, stirring constantly, until mixture is dark brown; remove from heat.
3Stir flour mixture into gizzard mixture until blended. Stir in 4 cups hot water, 1 cup at a time, stirring constantly. Stir in okra, crabmeat, shrimp and oysters. Heat to boiling; reduce heat to low. Simmer uncovered 5 to 10 minutes or until shrimp are pink and firm. Serve over rice.