Baked sea bass with tarragon and radishes

I don't eat a lot of fish and I'm not a fan of the radish so wasn't sure about this offering tonight.  I didn't eat the radishes as they were still too crunchy but everything else was lovely - the buttery sauce and red onions were particularly good.  I'm glad I had this as a starter though or I'd have been ravenous for the rest of the night - seriously who chooses to have fish?