I made this with unsweetened almond butter and whole wheat noodles because I think they have more flavor than udon noodles. The sauce is nicely balanced.
This is good, but it did need 1 tablespoon of fish sauce for my taste. There is no reason not to use the broccoli stem. Peel it and cut it into small dice. I do not like lumps of scrambled egg in my fried rice, so I put the egg in first, then sprinkle the rice over the top.