Those are okonomiyaki.
That's a great party food, actually.
2 cups shredded cabbage
1 cup flour
1/3 cup yam flour
1 tablespoon dry dashi stock
1 cup water
Mix it all together into a gooey paste. Poor a ladleful on a hot griddle.
Add whatever toppings you want: We usually use American ingredients, such as ham, shrimp, and green peppers, but should have this wriggly fishy stuff called katsuo, which looks alive as the steam comes off the pancake.
The ingredients should sink into the raw batter. Once the other side is cooked, flip and cook all your ingredients in on the other side.
Top with okonomi sauce and mayonaise.
Its cheap: You can feed a party of 20 people for under twenty bucks, and everyone gets exactly what they want.