Meal-in-a-Pan Frittata

Preheat the oven to 350 Degrees F. Heat a 10-inch nonstick or cast iron skillet to medium-low heat. Add the olive oil and the onion. Cook for 3 minutes, stirring. Add the diced sweet potatoes and a large pinch of salt and saute for 10 minutes until almost tender. In a mixing bowl, beat together the eggs, milk, 1 teaspoon of salt, and a few cracks of pepper. To the pan of potatoes, add the spinach, stir, and cook for another 2-3 minutes until spinach is mostly wilted. Pour the egg mixture over the sweet potatoes then turn off the heat. Scatter the goat cheese cubes evenly on top. Place the pan on the lower third rack of the oven and cook until the eggs are just set (about 20-22 minutes). Once the frittata is finished baking, let it cool in the pan for 10 minutes before cutting into slices and serving. Enjoy!