I saw it last night. They definitely had chickens, also gammon. Can't remember what other meat dishes. Loads of sides, desserts included ricotta cheesecake slices, apple pie and melting chocolate pudding.
As an aside, I have found lots of M&S stuff to be cheaper than the main supermarkets lately. Bagels are at least 20c cheaper per pack of 5 than Tesco, a litre of mixer (soda, tonic, ginger ale etc) was less than 50c, almost half the price of other supermarkets. Loose fruit and veg is well priced too.