I for one think MSG is a good thing but for someone so concerned with it, I'm surprised you're recommending broccoli. Other than cheese, soy and tomato, broccoli is about as high in glutamate as a food gets.

http://www.swivel.com/data_columns/spreadsheet/2486462

I'm not too concerned with MSG, but certain types give me a bad reaction (MSG in chips, Pho soup, ramen flavorings, etc).

Broccoli, no reaction and I can eat tons.