Foods that go together... but why

[Gusto]

Liverwurst with herbs, and mustard.

 

[figmentPez]

I like radishes on my sandwiches. They're especially good with turkey, tuna or roast beef.

 

[Wasabi Poptart]

Do you guys put ketchup on your baked potatoes?

I used to put ketchup in my mashed potatoes when I was a kid.
Added at: 18:15

Minor one for me - scrambled eggs with ketchup on top - no idea how I got started on it, but I don't eat scrambled eggs without ketchup on top anymore.

My grandmom used to make me scrambled egg sandwiches and I always put ketchup on those. Now I like hot sauce with my eggs instead.