Apple Crisp- Apple's are fruit, fruit is health food. The grain in the oatmeal that makes up the crust is also health food. If you add ice cream you have dairy and then you have four out of the five food groups. Therefore, apple crisp is health food.
Peanut Butter Cookies- Peanut butter cookies have peanut butter in them, and peanut butter is made of peanuts, which are legumes. Legumes are health food, therefore peanut butter cookies are health food.
Cheesecake (which is a cake and not a pie)- Cheesecake has eggs, which have protein, which is a necessary nutrient to survive, therefore, cheesecake is health food.
Potato Chips- Potatoes are vegetables, and vegetables are health food, therefore potato chips are health food.