Okonomiyaki weren't a part of my growing up experience, but the first time I had them I knew that they were going to be a part of my adult life. They're easy to put together, reasonably healthy (or at least full of veggies), and really tasty.
2 cups flour (whole wheat)
2 cups water
1 egg (I suspect this can be cut but I wasn't feeling that brave)
1 small napa cabbage, minced
Mix together, trying not to overstir.
Almost anything you can think of, including:
Mushroom cake (didn't try it, but thought about it)
Marinated tofu (another one I didn't try)
(Non-veg suggestions include pre-cooked shrimp or pork. I'm sure you can come up with others.)
Heat a nonstick skillet with a little (sesame) oil. When the pan is nice and hot, pour in one scant cup of the batter. Lay the toppings of choice on the raw side while the cooking side cooks. When the edges look brown and bubbly (just like pancakes), give the whole thing a flip.
You may need (I did) to press down on the flipped pancake to ensure that it cooks through in the middle.
No pictures as we were too interested in the eating to snap one.