To make a crispy baked potato, paint the skin with olive oil and bake in the oven on a sheet of foil. It will help speed the cooking time if you drive a steel or aluminum nail into the potato. Buy nails made from food grade steel or aluminum for safety.
I eat the skins from kiwi, and when my grandmother peeled apples, peaches, and cucumber, I would eat the peel.
As a child, I peeled the cheese off my pizza, although I liked cheese generally. It wasn't until I was an adult that I realized I don't like pepperoni or sausage, and don't like how they flavor pizza cheese.
I peel grapefruit like an orange, except that I peel off the transparent skin between the sections. On the other hand, I eat lemon, peel and all.
Oh, and I eat the whole sunflower seed in the shell. I know you aren't supposed to, but I like the flavor. I try not to eat too many, as they are supposed to be able to cause blockage in quantity.