Wow, what a long title! :)
But the dish is really yummy and simple in cooking at the same time!
Ingredients measurements depend on your oven tray and your taste. So, i'll just suggest you ingredients themself.
For potato casserole with mushrooms and minced pork under cheese and sour cream with dill you'll need
potatos
minced pork
mushrooms (i used champignons)
onions
some cheese and sour cream
chopped dill
some margarine
a tomato