Medium

1 Pack Moving Mountains No Fish Fingers
1 small red onion, thinly sliced
1 lemon, juiced, plus extra wedges to serve
4tbsp vegan mayo
1 tbsp capers
½ tbsp horseradish
1 tbsp roughly chopped parsley
2 gherkins
1 little gem lettuce, shredded
2 slices crusty white bread, toasted