Can I come too. Actually I feel a shopping trip to York coming on - but not at the weekend. If you like Italian food I can strongly recommend 'Il Vecchio Scuolo' (if I've spelled it correctly). Top of the Shambles, not far down from the Minster. It's pretty roomy - on our yearly family 'girls day out Christmas shopping expedition' we usually go there.
If it's survived the recession so far, 'Ate O'Clock' is not far from M&S - across the square and downhill a bit to the left. Very good 'Moules' amongst a varied menu - everyone was happy with their choice.
Enjoy your day!