Spinach, Feta, and Potato Gratin Ingredients butter, room temperature, for baking dish 5-6 medium-sized red potatoes, washed, peeled, and sliced 1/8-inch thick, divided 3 cans Spinach, washed and drained, pat dry with paper towel 1/2 cup crumbled feta cheese 2 1/2 cups heavy cream 3 eggs salt and pepper to taste
