This is a good dish for fussy eaters you can add a bit of chopped bacon thru the layers of potato its an old standard that kids seem to enjoy.
I had this when I was a child.
4 potatoes washed peeled and sliced thinly
1 cup milk
1/2 cup cheese (optional)
1 teaspoon butter
Coat potatoes in flour mixture and arrange in layers in a casserole dish
Boil milk and pour over the potato, dot with butter and sprinkle with cheese(optional)
Cook uncovered for 30 mins till golden brown.