1 tin (185 gm or 6 oz) tuna
1/2 cup cheese (finely grated)
2 tablespoons stuffed olives (finely chopped)
1 teaspoon lemon juice
2 tablespoons mayonnaise
Salt to taste
Freshly ground black pepper

Drain and flake tuna.
Mix in cheese, olives, lemon juice and mayonnaise.
Season to taste with salt and black pepper.