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Kale, Potato, and Onion Frittata

This kale, potato and onion frittata is a nutritious and satisfying vegetarian dish that works beautifully for brunch, lunch or a light midweek supper. Combining earthy kale with tender potatoes and the subtle heat of smoked paprika, it offers a wonderful depth of flavour and a lovely contrast of textures. The recipe is a fantastic way to use up leftover boiled potatoes, turning simple store-cupboard staples into a vibrant, protein-rich meal that feels both wholesome and comforting.

Packed with leafy greens and iron, this healthy frittata is remarkably versatile. It can be served warm straight from the pan or enjoyed cold, making it an excellent choice for a healthy lunchbox or a seasonal picnic. Serve it alongside a crisp green salad or a dollop of soured cream to complement the smoky notes of the paprika.

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Ingredients for Kale, Potato, and Onion Frittata

  • Vegetable oil cooking spray

  • 1 yellow or white onion, sliced

  • 450g kale, trimmed, blanched 3 minutes in boiling water, drained, squeezed and coarsely chopped

  • 2 cloves garlic, chopped

  • 475ml boiled diced potatoes

  • 2 whole eggs

  • 2 egg whites

  • 1/2 teaspoons paprika (preferably smoked)

Heat oven to 204°C. In a medium skillet coated with cooking spray, cook yellow onion over medium heat, stirring, 5 minutes. Add kale and garlic; stir 5 minutes. Add potatoes. Whisk eggs, egg whites, 2 tablespoons water and paprika in a bowl. Stir in kale-potato mixture. In a cast-iron skillet coated with cooking spray, cook egg mixture over medium-low heat 1 minute. Transfer skillet to oven; bake until eggs are set and centre is slightly runny, 6 to 8 minutes. Grill until top is golden, 1 minute.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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