This is a great dish, but there were some serious challenges with the method and the amount of oil for me in this recipe. First off you absolutely need to cover the casserole dish for part of the cooking time. I followed the recipe to a t and the small potatoes I used were not done at all and after cooking them longer and covering them the sauce still separated so this was frustrating. Also, I wish I would have cut the amount of olive oil in half at least because this was ALOT! It tasted better the next day but out of the oven it was way too oily to add additional fat from the feta.