In a bowl, thoroughly blend the mayonnaise, mustard, capers, ketchup, paprika, and hot pepper sauce.
Brush the basa fillets with about 1 tablespoon olive oil, and roll in the crushed Melba toast to coat. Season with salt and pepper. Use a kitchen sprayer to lightly spray the coated fish with remaining olive oil. Arrange the fish in a baking dish and top with garlic and lemon slices.
Bake 15 minutes in the preheated oven, or until fish is easily flaked with a fork and coating is lightly browned. Serve with the mayonnaise sauce mixture.
