I suppose as far as restaurants go it depends if fast food in a zoo is counted. Yesterday we had hot dogs at Yorkshire Wildlife Park. The day before we had a bacon sandwich at a cafe at the side of Leeds Bradford airport. The last proper meal in a restaurant was when we stayed in Eastbourne the weekend before last. Evening meal and breakfast. The evening meal wasn't anything to write home about. It was quiche and salad and the quiche was very dry and tasteless. Breakfast however was an all you can eat buffet with a cooked order taken for as many sausages/bacon/eggs etc as you wanted. Can't beat it.
I do like Wetherspoons meal deals too. Usually a meal and a drink for around £6-7.