"Is it permissible to prepare dinner on New years Day provided all the ingredients were pre cut the day before,so as not to use knives etc."
Superstitions dictate that all food must be prepared ahead of time and all knives must be put away.
Using a knife during the first days of the New Year "cuts off" all the good luck for the coming year.
So yes, you can prepare dinner on New Year's Day when all your igredients have been pre-cut the day before!
Feliz Año de la Cabra!