In a large Dutch oven, pour oil to a depth of 4 inches, and heat over medium heat until a deep-fry thermometer registers 350°
In a medium bowl, place Slap Ya Mama Cajun Fish Fry. In a small bowl, whisk together eggs and 1 tablespoon water. Dip fish in egg mixture, letting excess drip off. Dredge in fish fry, coating completely. Working in batches, fry fish until golden brown, 2 to 4 minutes. Let drain on paper towels.
Using a spatula, spread ¼ cup Rémoulade Sauce onto bottom half of each loaf. Top with fried fish, lettuce, tomato, and pour an additional ¼ cup Basic Rémoulade over each sandwich. Cover with top halves of loaves.
Rémoulade Sauce (Makes about 1 ½ cups)
In a medium bowl, combine all ingredients. Cover and refrigerate for up to 3 days.