Went to Brightlingsea by sea with some friends on Saturday and had an excellent meal at the Rosebud Pub & Restaurant. About 15 mins walk from the hard, just off the High Street at Hurst Green. Not your usual Pub fare but at Pub prices. You must book in advance as it's becoming very popular! Highly recommended.
Oh and the beers good too and a view of the creek from the garden. See:- http://www.rosebudpub.co.uk/