I haven't seen a French Restaurant posted yet, but Pescadou Bistro in Newport Beach is authentic French food (owner/servers are French) in a comfortable yet romantic setting, and the prices are fair for the cuisine type. It's also one of those lesser known type restaurants. Highly recommended.
Tip: They have a "blackboard menu" which is a 2 or 3 course menu in the $24-29 range. Wednesdays they have a "no corkage" special, so you can bring in your own bottle of wine for no charge.
Welcome To Pescadou Bistro