- 2 tablespoons olive oil, divided
- 10 ounces white potatoes, cubed
- Salt and pepper to taste
- 1 clove garlic, minced
- 2 cups kale, leaves stripped from stems and coarsely chopped
- 1 teaspoon Dijon mustard
- 10 large eggs, beaten
- 1/2 cup shredded Pecorino-Romano cheese
- Preheat oven to 400 degrees F.
- Heat 1 tablespoon of the oil over medium heat in a 10-inch ovenproof and nonstick skillet. Add the potatoes, season with a pinch of salt and pepper, and saute until golden brown and tender, about 10 minutes. Remove potatoes and set aside.
- Add the remaining 1 tablespoon oil to the skillet and add the garlic and kale and season with a pinch of salt and pepper. Saute until kale is wilted, about 5 minutes. Add potatoes and mustard; stir to combine. Stir in beaten eggs and cheese. Place the skillet in the oven. Bake for 20 minutes or until the eggs are cooked through and a toothpick inserted in the center comes out clean.
- Once the frittata is finished, run a knife around the edge of the skillet and gently slide the frittata onto a carving board or serving plate. Garnish with additional pecorino cheese if desired. Slice and serve.