Pizza dough, patted into a thin round (I used French bread dough)
1 russet potato, thinly sliced
1/2 an onion, thinly sliced
3 tablespoons olive oil
2 tablespoons fresh rosemary, mincned
1 teaspoon sea salt
Preheat oven to 500 F.
Arrange potato slices in concentric circles over pizza dough.
Mix onion slices, oil, rosemary and salt. Spread over potatoes. Place on a baking stone, and bake for 25 to 30 minutes.