Real Food Tips: 10 Recipes to Freeze For School Lunches (which makes packing a breeze!) - 100 Days of Real Food
These taste great even without eggs. All you do is mix and fry so it's easy. These also taste great cold, so I recommend them for bento lunches.
My Granny's Onigiri with Pickled Plum and Bonito Flakes Recipe by cookpad.