I've also eaten plenty of stuff that is awful for me but tasted wonderful and I wouldn't regret for a minute.
I made a bacon-maple cheesecake recently, with a crust made of gluten-free ginger snaps. It was fantastic, but breaks almost any diet rule of any plan you might follow, haha.
In my hometown, one of our specialties is called the "garbage plate." You fill half a plate with home fries and the other half with macaroni salad... top it with two burgers... then slather on "hot sauce" (the meat-based stuff, sorta like chili), mustard, and onions. Serve with bread, of course, because that isn't enough food already.
Best eaten at 3am while incredibly intoxicated.