Heat oil to 350 degrees. Mix milk and egg. Place shrimp in mixture. Mix Tony Chachere's Fish Fry Mix, crumbs and Tony Chachere's Creole Seasoning. Dredge shrimp through mixture. Fry in hot oil. Toss hot fried shrimp with sandwich sauce and serve on top of poboy bread or salad greens. Use extra sauce as dressing. YUM!