Classic Tuna Melt with Crispy Breadcrumbs

Method

1. Drain the tuna and mix with mayonnaise, mustard, red onion, and celery.
2. Spread the tuna mixture on one slice of bread.
3. Top with cheddar cheese and the second slice of bread.
4. In a small bowl, mix breadcrumbs with olive oil and sprinkle over the sandwich.
5. Heat a skillet over medium heat, add the sandwich, and cook until golden brown on both sides.
6. Cook fish and seafood to an internal temperature of 63°C (145°F) before serving.