RecipeTin Eats’ prawn cocktail lettuce cups

Ingredients

• 1 baby cos lettuce, leaves separated, trimmed into 5cm x 4cm pieces
• 350g medium cooked prawns, peeled, cleaned, sliced 0.5cm thick
• 2 ½ tbsp whole egg mayonnaise
• 2 tsp finely chopped chives
• 1 tsp lemon zest
• 2 tsp lemon juice
• pinch of cooking salt
• pinch of black pepper