TheFork users who ate in Terrassa have said really good things about Roll In, La Guacamaya and El Fogón. Maybe you should give them a try!
Some of the more popular Organic restaurants where you can go with your friends in Terrassa according to TheFork users include:
La Leggenda di Napoli, with a 9 rating
Mi Chef, with a 9 rating
La Antorcha, with a 9.5 rating