I think I could eat one of Bellamy's mutton pies.

Also "I think I could eat one of Bellamy's meat pies." Both in Rosebery, Pitt. Rosebery wrote that this story was related to him by Disraeli, who heard it as a young member of Parliament by a "grim old waiter of prehistoric reputation, who was supposed to possess a secret treasure of political tradition." According to Rosebery, "Disraeli mentioned the meat -- veal or pork I think, but I have forgotten." Reported in Rosebery, Pitt.