Curate, connect, and discover
As an ice dragon.... Probably permafrost?? But I would never actually seek it out as a meal or anything obviously
Alternatively, glacial sediment. Or sand/mud from lakebeds/riverbeds/seafloors. I could see those getting in my mouth when I eat, as I'm partially aquatic and most of my hunting takes place underwater.
I would prefer not to eat dirt tho thankyou
Well, lets see. As a Cybertronian, we don't really "eat dirt" per se.. though, we do consume plenty of minerals and types of rock.
As a canine/feline/vulpine entity, perhaps accidental dirt...? Such as, dirt that flies up into your snout when you're digging or rolling in the mud! Yes!