01 - Preheat grill to medium-high heat, approximately 375-400°F.
02 - Place Cajun beef sausages on the preheated grill. Cook for 10–12 minutes, turning occasionally every 3-4 minutes, until well browned and cooked through with an internal temperature of 160°F. Remove from grill and let rest for 2 minutes.
03 - While sausages are grilling, split the baguettes or hoagie rolls in half lengthwise. Place cut-side down on the grill for 1–2 minutes until lightly toasted and crisp.
04 - In a small mixing bowl, combine mayonnaise, Dijon mustard, Creole mustard, ketchup, minced parsley, hot sauce, paprika, garlic powder, onion powder, and lemon juice. Whisk vigorously until fully incorporated and smooth. Season with salt and black pepper to taste.
05 - Spread a generous layer of remoulade on both cut sides of each toasted baguette. On the bottom half, layer shredded iceberg lettuce, tomato slices, dill pickle slices, and thinly sliced red onion. Place a grilled sausage on top of the vegetables.
06 - Top with the remaining baguette half, press gently to compact the sandwich, and serve immediately while warm.