Wash all vegetables. Chop leek, mushrooms and sweet potato into small pieces. Cut kale into medium pieces.
Heat a large pan over medium heat. Once hot add avocado oil.
Add vegetables besides kale to the pan, season with salt and pepper and fry until the sweet potatoes are slightly browned on both sides and fork-tender. Stir occasionally.
In the meantime heat a large pan over medium heat. Once hot add a little bit of avocado oil and then add the eggs to the pan. Fry until the egg white is cooked through.
Once the sweet potatoes are cooked through add the kale to the pan and mix it with the other vegetables. Cover it with a lid, turn off the heat and let it rest for about 1- 2 minutes or until the kale is starting to wilt.
Serve vegetable skillet with egg.
Enjoy!