Mahi Mahi Banh Mi (Vietnamese Fish Sandwich) - Frugé Seafood

Ingredients

• 4 bolillo rolls, or 4 soft hoagie rolls, toasted
• 4-5 oz. Mahi Mahi fillets
• 1 cup daikon radish, finely julienned
• 1 cup carrot, finely julienned
• 1 English cucumber, seeds removed and finely julienned
• 1/2 bunch fresh cilantro
• 1/2 bunch fresh mint leaves
• 1 bunch watercress, long stems trimmed away
• Salt
• pepper
• Cooking spray
• 4 tbsp mayonnaise
• 1 tbsp Sriracha (spicy Asian style garlic-chili sauce)