Kale, Sweet Potato, and Onion Frittata Recipe

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Caroline Published: January 20, 2021 Modified: June 1, 2021

How To Make Kale, Sweet Potato, and Onion Frittata

Grab a bite of this savory onion frittata, loaded with distinctly earthy flavors from the kale and tender sweet potatoes, for a filling meal!

Preparation: 15 minutes
Cooking: 6 minutes
Total: 21 minutes



  • 7large egg whites
  • large egg yolk
  • 1small sweet potato,cut in ½-inch cubes
  • 1cupwater
  • 1small yellow onion,roughly chopped
  • 2tspextra virgin olive oil
  • kosher salt,to taste
  • ground pepper,to taste
  • 2cupskale leaves,chopped, ribs and stems removed
  • ½blood orange,or ½ small navel orange


  1. Preheat the oven to 450 degrees F.

  2. In a large bowl, beat the egg whites with an electric hand mixer until soft peaks form.

  3. Add the egg yolks and gently fold with a rubber spatula until incorporated. Refrigerate.

  4. In a large, nonstick, oven-safe skillet, combine the sweet potato and water.

  5. Bring to a boil over high heat, then reduce the heat to low and simmer, stirring occasionally, for 8 minutes until the water has evaporated and the sweet potato is soft on the outside.

  6. Add the onion, olive oil, salt, and pepper. Increase the heat to medium and cook, stirring often, for 1 minute until the onion starts to soften.

  7. Add the chopped kale and cook, stirring often, for 2 minutes more until the kale is wilted and dark green.

  8. Spread the vegetables evenly over the bottom of the skillet, then pour the egg mixture on top and spread in an even layer.

  9. Transfer the pan to the oven and bake for 5 to 6 minutes, until the frittata is puffed, cooked through, and very lightly browned.

  10. Let the frittata cool in the skillet for 5 minutes, then flip it onto a cutting board and cut in half.

  11. Cut the frittata into wedges, then serve with orange slices, and enjoy!

Recipe Notes

Let any leftovers cool completely, then store in an airtight container in the refrigerator.


  • Calories: 202.10kcal
  • Fat: 6.65g
  • Saturated Fat: 1.28g
  • Monounsaturated Fat: 4.05g
  • Polyunsaturated Fat: 0.82g
  • Carbohydrates: 20.11g
  • Fiber: 3.70g
  • Sugar: 7.81g
  • Protein: 15.85g
  • Cholesterol: 68.43mg
  • Sodium: 880.01mg
  • Calcium: 84.93mg
  • Potassium: 563.33mg
  • Iron: 1.04mg
  • Vitamin A: 453.57µg
  • Vitamin C: 40.38mg
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