I always keep bags of microwave popcorn in the pantry for unexpected guest. Most people like popcorn and it is easy to make quick. I also keep plenty of fruit,saltine crackers or ritz crackers on handy with cheese, dip or peanut butter. It is nice to entertain your guest when you know that they are coming for a visit but when they show up unexpected you just have to work with what you have in the cubboard. I would just cook what I have . Remember if you seem happy your happiness will rub off on them and they will be content with what you present them with.