Last time I went out for supper with Mr S we ordered the same thing - I requested my pork belly with extra veg instead of the dauphinoise potatoes - I was very happy as they did exactly what I asked, but Mr S was not amused to see that he too had extra veg instead of the dauphinoise potatoes!!!! It was fine though - they sorted it so we were both happy.
On Sunday we stopped at a tiny cafe for some lunch - the menu options were three items: bacon bap, ham bap or cheese bap, with optional salad in the bap if you wanted it. I asked if they would be able to lose the bap but supply a slice of ham and a slice of cheese with some salad instead. They were surprised but very very amenable, and it was presented absolutely beautifully. Even brought me a bottle of Hellmann's! I was delighted! They charged a whole 50p more for mine, which I felt was a bargain! And Mr S was very pleased with his bacon bap with brown sauce.
Other Snapsy favourites include 'ham and eggs but with veg instead of the chips, please' and 'steak with the grilled tomatoes and mushrooms, please, but with veg instead of the chips, please'. In all cases I will only ask for items I can already see on the menu - for instance if in a pub all main courses come with salad rather than veg, I don't go asking them for veg, but some extra salad instead. If ever I'm told 'no' then that would be absolutely fair enough, no problem. But so far, so good. I've always been accommodated, and I'm always very grateful, and I make sure I say so.
Pudding's easy (if I've got room after all that veg/salad/whatever). 'Cheese please, no biscuits or chutney, thanks'. Or just an Americano, to warm up while I watch Mr S freeze his face off with a bowl of ice cream or some such.