Not sure if Morrisons do the same as Tesco but their cooked meat section they have cooked whole fresh chickens which are very tender unlike their hot freshly cooked chickens with short dates on it where as the pre cooked ones in the cooked meat counter has long sell by dates on and is a lot bigger. I buy one nearly every week as it saves my money on food washing up and bills to cook one
I get dinners curries and sandwiches from it.
you can reheat cooked chicken as long it's cooked on a high heat and cooked well which I do with the curries.