Ingredients for a frittata for 1 to 3 persons:
Pre-heat an oven to 375 F.
Clean the yam by rinsing and rubbing under water. Cut into slices, then cubes, leaving the skin on. Heat the oil in a skillet. Add the yam pieces, sear in a cast iron skillet and bake for 20 minutes in the pre-heated oven. The yam should be soft but firm.
Whisk the eggs and egg whites together in a bowl. Season with salt and pepper.
Top the yam, in the same skillet, with the chicken, zucchini slices, red onion rings and tomato slices.
Pour the egg mixture over ingredients in the skillet and top with goat cheese if desired.
Return the skillet to the oven and bake for another 25 minutes.
Enjoy!