I like to put a layer of potato chips on a tuna salad sandwich.

How about this winter holiday must have - mashed potatoes topped with sauerkraut topped with turkey gravy. Yummm.

Mc Donald French fries and a chocolate shake

Shredded Sharp Cheddar Cheese on pineapple chunks.

Having done something similar I believe you.
Once after a very long day and having picked up one of those limited edition Haagen daz , (the espresso swirl one) was feeling very tired & lazy. I put it in a bowl & dumped fritos & caramel corn alongside it... I was shocked how good it was. I'd never done anything like that before & felt particularly slob-like but it worked.
A couple tablespoons of dry wine on a good vanilla bean ice cream is phuckin amazing also IMO.