Last millennium is overrated, no potatoes. I hope you like porridge!
I'd probably miss good cheese and bread that doesn't have bits of rock in it.
Wouldn't it be shit to go back in time to your favourite period in history and just be made into a slave/labourer for the rest of your life whilst other people live the warrior/knight/royalty dream
based on the number of people in each class sadly you're statistically more likely to end up one of those, and if you time travelled nobody would know who you were so you'd almost certainly become one. I'm sure after a few decades of unpaid servitude you'd come to appreciate the paid democratic capitalist slave labour life you had before. Then again if you were well-born or incredibly lucky your life would be great, even with no potatoes (but then again if you were well born or lucky in this era life's great too, plus you get potatoes so win-win).