The basic idea I had when I thought this up was that
canned quail eggs (which come boiled and shelled, of
course) are kinda bland by themselves, so what can I
do with them to make them more interesting? What I came
up with at the time was simmering them in teriyaki sauce.
What you need:
Mix the soy, mirin, and sugar well. Put the
mixture into a sauce pan and heat it on medium, stirring
every so often. When it reaches a simmer, put in the
eggs. Let the sauce come back to a simmer, lower the
heat a touch, and stir the eggs around often to
give them even coverage. After about 10 minutes
the eggs should be tan colored and ready to eat.