Oh come on, mash is not difficult. If you really cannot be asked to peel spuds, then stick some baking pots in the oven. I cannot think of a single use in my house, at least, for frozen mash. And trust me, I'm quite a lazy cook, I do cook from scratch but I do it the quickest least painful way. And anyone who's ever tasted a homemade Yorkshire pudding is definitely not going to be buying Aunt Bessies, they're horrible.