The One Elm, Stratford upon Avon

Go here if you are in Stratford upon Avon. The food is great - especially their signature Valrhona chocolate & orange mousse with pistachio tuile.
The service is good and there are lots of different areas to sit with a cool secret courtyard for summer. Apparently there is also an upstairs dining area but I didn't see that whilst we were there.
They have a fixed price menu which is reasonable for three courses at £15.75, a good selection of starters, mains and deserts, plus a section to order small dishes to share. There is a big focus on British produce and seasonality which ensures a delightfully fresh, British menu.
The wine list is extensive for a pub and they also do delicious cocktails, by the glass and jug for some.