L.M.
I did this last year and it got terribly dried out. I started it early in the morning and kept it covered really well with foil, but when it came time to eat (which got delay- part of the problem) it was overcooked. I would definitely try it again, but be careful with the cook time and temp of the crockpot(maybe reduce once the ham gets warm). It was nice to have my oven free for the other casseroles and rolls that needed different oven temp.