I found these on another site for weight loss actually and found they work perfect for a protein punch and can freeze for a quick toss in the lunch on the way out the door. It's not really japanese at all but it works perfect for my americanized bentos I think.
You will need
salt/pepper to taste
1 egg will produce 2 egg cups so plan your ingredients around how many you will make.
line each muffin cup with a slice or two of ham (depending on how thin it's sliced).
Scramble the eggs, salt and pepper until nice and fluffy then stir the shredded cheese. I generally add a few pinches per egg. Pour the egg mixture into your ham lined muffin cups and bake at 350 until eggs are cooked through.
I normally eat one and toss the second into the freezer. It gives me a meal and a spare.
Just the new girl around here looking for some lunch ideas.