Pizza hut do an all you can eat lunch buffet. Quite reasonable if you like that type of stuff. Pizzas have single topping so don’t expect a nice meat feat. You also get pasta and salad included. For a bit extra you can get unlimited icecream as well. I must try that one day as the icecream at Pizza Hut is that nice whipped stuff.
There is one on the high street in Sheffield. There are others dotted around, some of which will also do the lunch buffet. Other thing about Pizza Hut is that the unlimited salad is all day, so if you can get full off salad, you can order a small pizza and attack the salad bar.
41-47 High Street,