i think what you are looking for is called "dan bing" which is essentially a scallion pancake as listed above with a layer of egg + scallion. we make this at home, its part of a traditional taiwanese breakfast.

Oh, I know exactly what you're talking about - I had these in Beijing from the hole in the wall place near my dorm, it's a crepe, topped with some kind of crackery, crispy thing (maybe crispy tofu skin?), then scallions, maybe chili paste, and an egg that's scrambled on top of the whole thing. It gets folded up into a package and then you eat it very happily. My cousin says they're called "jian bing," and the internet confirms this for me: http://www.theworldofchinese.com/2012/03/jianbing-a-guide-to-china%E2%80%99s-favorite-street-food/

Thanks for the answers!! I thinks it's like the scallion pancakes with a layer of egg and scallion as Sassysprite says. I'll try it at home!
Thanks Mimblewim but is not the "Jian bing", haven't seen it yet.

(Susana)

We use hot water instead of the worm water for the dough, and it will bring the crispy on each side.It is called Cong You Bing in Chinese.

Are you thinking of the Korean Pancake? Flour, eggs, a lot of green onions. http://www.simplecomfortfood.com/2011/11/12/korean-pancakes/

I agree with the above comment--you could be thinking of a green onion pancake, which is in chinese cuisine as well. It's really good served with a side of soy sauce with red chili!

Serious Eats posted a great one last year. I made it and it was amazing.

http://www.seriouseats.com/recipes/2011/04/extra-flaky-scallion-pancakes-recipe.html

http://www.shecook.com/recipes/358619ea6d75483cb6ed3fe77dfe8e96 Is this what you are looking for? It is called Jian Bing Guo Zi , usually available on the street.

LOL chinese pizza http://www.pizzahut.com.cn

Just kidding...Hey SassySprite I dont think its 蛋餅....probably thinking of 葱油饼 actually.

Eh...recipe? just do a google search~ http://www.seriouseats.com/2011/04/the-food-lab-how-to-make-scallion-pancakes-chinese-appetizers.html

I'm pretty sure its dan bing if its a thin crepe with egg on it. did you have a sweet soy sauce with it? taiwanese breakfast food is worth swimming an ocean for. in fact- all taiwanese food is!

Since you are talking about a crunchy, chewy tortilla it could also be a hubing (烀饼), see here for picture: http://www.meishichina.com/Eat/Nosh/200912/73447.html

It is a Northern Chinese dish made from cornmeal that is mixed with water and pressed in a cast iron pan. Then the pancake is "cooked/baked" until chewy, with a crunchy, slightly charred bottom, and most commonly topped with scrambled eggs, Chinese chives (they look like chives but taste like ramps) and tiny fried shrimp, although there are a lot of variations.