I honestly don't know, sorry
GF pasta as well as seafood and meat options.
Yes. They will cater to your needs.
Look at the menu:
Google "Gabriele Ristorante orange ct" and first item is menu
Yes, quite a few. I am pretty sure they had gluten free pizza. I don't remember if there was a pasta option. Many of the main courses and antipasti were gluten free.
Get quick answers from Gabriele Ristorante Italiano and Bar staff and past visitors.