Generously sprinkle Cajun's Choice Blackened Seasoning on fish fillets. Heat vegetable oil in a skillet. Cook fillets about 2 minutes per side until fish begins to flake when touched with a fork. Remove from heat to a warm dish. While the fish is cooking, melt butter in a medium skillet. Add mushrooms, garlic and onions. Cook about 5 minutes over med-high heat until wilted. Stir in shrimp and Cajun's Choice Creole Seasoning. Sauté 3 to 4 minutes. Add wine and cook until liquid reduces slightly. Serve this mixture over fish. This dish is excellent served with rice pilaf and/or fresh vegetables