Sandwiches, toasted or not, are perfect!
Bread (a hundred types to choose from )
Meat (cold cuts, left overs, fishes, meats BBQed, smoked, brined)
Veg (leaves, thin sliced peppers, cukes, onions, olives, tomatoes, baby radish)
Cheese (another hundred to choose from)
Sauce ( salsa, pesto, peanut butter, salad dressings, mayo, jam, cranberry sauce, comfit, mustards, relishes, BBQ sauce, sub sauce)
Extras (picked vegetables, hummus, boiled eggs, fried onions, potato salad, coleslaw,)
There must be a million different sandwiches to be had.