I'm convinced there's beauty in asymmetry too. It gives me a hint of something unnatural that went before, or that there's layers and nuances within.
In numbers - a portrait of something solitary, the third person in a crowd of three and so on.
In a face - a scar, a lazy eye.
In music - a 7th chord, the one baton a conductor uses, the third tenor, shikar taal.
In food - I can't think of how asymmetry applies here. Perhaps in how sashimi doesn't need to be washed down with a salad. Here, I'm thinking asymmetry in nutritional content. Or maybe I'm just hungry.