Step 1

Preheat oven to 350F.

Step 2

Slice sweet potato using a mandolin and line the bottom of a greased 9 x 13 baking dish.

Step 3

Combine eggs and egg whites with seasonings, whisk them well, and pour them on top of the sweet potato.

Step 4

Thaw (I used the microwave) and squeeze dry, frozen spinach, place on top of potato slices. Add feta on top of spinach.

Step 5

Bake until eggs are fully set, about 35-45 minutes.