In large kettle, saute onion, green pepper and garlic in butter. Blend in flour; cook over low heat, stirring constantly, until mixture is bubbly and vegetables are tender. Remove from heat; add remaining ingredients except shrimp, rice and parsley. Simmer 45 minutes. Just before serving, add shrimp; simmer, covered, 5 minutes until shrimp are pink and tender. Toss together with rice and parsley. Serve gumbo in soup plates over portion of rice and parsley. Or heap rice in center of individual bowls of gumbo.