Tuna Crisp Butty

Ingredients

• 170 g (1 can) Ocean’s Flaked White Albacore Tuna, drained
• 3 tbsp (45 ml) mayonnaise
• 1 rib celery, finely sliced
• ¼ tsp (1 ml) freshly ground black pepper
• 2 fresh soft rolls Portuguese rolls, baps or kaiser buns
• 2 tbsp (30 ml) butter, softened
• A small handful potato chips, we went with sea salt and vinegar, but any flavour would work
• 2 x ½-in (1.25 cm) thick side-cut slices iceberg lettuce