This is a simple tuna snwdaich. Buy tuna in oil. Drain some of the liquid (the liquid adds flavor) then add mayonnaise (either be plain or relished). Add some grated carrots, minced green pepper, pinch of salt and ground blackpepper, small amount of minced onion, and grated cheese. (just right amount proportional to the amount of your mayonnaise.) You can put a little amount of sugar or honey if you want hint of sweetness. Just mix all of the ingredients together in a bowl. You can use wheat bread or plain loaf of bread. It is best when grilled or toasted in an oven toaster.