Before You Begin
Preheat and prepare your cookware as needed. Cooking times and results may vary depending on your equipment and ingredients.
Pat fish dry and season evenly on both sides. Lightly brush with olive oil.
Preheat grill to medium-high heat and lightly oil grates.
Grill fish 3–4 minutes per side until it flakes easily and reaches 145°F (63°C).
Toast rolls cut-side down about 1 minute until lightly golden.
Let fish rest 2 minutes before assembling.
Assemble sandwiches with lettuce, tomato, onion, fish, and sauce.
Serve warm.