Light brown bread, thin coat of mayonnaise, aged Gouda cheese, semi-sun-dried tomatoes, cherry tomato halves, lettuce, balsamic vinegar, second slice of bread. Eat. I call it the "Stratwich", and I used to make it all the time as a midnight gaming snack. Just watch out when eating - the oil from the sun-dried tomatoes and the balsamic vinegar can make the whole deal turn messy, and even if you manage to keep it together properly, your fingers are probably going to be greasy.
And if you're wondering "where's the meat": I'm a vegetarian. But feel free to experiment.