This potato casserole is similar to au gratin potatoes, with the addition of hearty mushrooms and onions. If you can't tolerate dairy, this recipe may not be for you because it's super cheesy.

Au Grati Potato Recipe via @Whats Cookin Italian Style Cuisine.comPhoto byClaudia Lamascolo Print this recipe ...

Finding that isn’t always the easiest, but Martha Stewart has made our potato fantasies a reality with her Creamy Potato Gratin recipe ... for russet potatoes. The casserole gets its glorious ...