I made this in less than 30 minutes, love that!!
I used frozen shrimp, added a bit more liquid but then I cooked the broccoli in that and it was fine. Needed more broccoli. I also sub'd flour for cornstarch, didn't miss the cornstarch. It tasted a little salty at first but then I added a little more liquid to make more sauce because we served it over whole wheat spaghetti, it was yummy. Didn't have any lemon, maybe that's what was missing. My husband said to use more garlic. The whole deal could be a bit saucier... not sure if I would change it much beyond that, simple, tasty, low-fat... It's a keeper!
Even my finicky husband and 8 yr old son loved it and said I have to make it again!