I eat bagels a lot for lunch. There are so many toppings/fillings to use: tuna salad or egg salad, cream cheese, BLT, peanut butter, ham. A couple of my favorites are also pimento cheese or a combo of cream cheese/raisins/green olives. Usually I'll have a fruit with it for dessert. I'm not big into leftovers, but my husband will take leftovers for his lunch.