...have to admit to not eating much bread but if I have a sandwich it would be tuna.
If it's a Crisp butty, the remaining crisps that you could't fit on the butty on the side as a garnish. Cheese and Onion of course (there are no other crisps)
Coal miners thing - they took that down the pit to moisten there mouths with the jam and the cheese a substance !Cheese and jam
Welsh thing