For me, I love a sizely bowl of vanilla ice cream covered with chocolate syrup, and by covered I mean loaded. No white can be showing on the top. Has to be all chocolate. Terribly unhealthy but I'm actually below my preferred weight and I'm told to eat high calorie foods. I know that sounds crazy but it's true, and it's not as easy for some to gain weight as it is for others.
So name any type of food you can think of that you look forward to between meals. Go!