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Frittata · Spinach and Feta

Spinach and Feta Skillet Frittata

A tall, tender frittata started on the stove and finished in the oven, with garlicky spinach and salty feta. Serve it warm for breakfast or cold in wedges for lunch.

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Prep
10 min
Cook
20 min
Total
35 min
Serves
6 · one 10-inch frittata
Level
Easy

Ingredients

  • 10 large eggs
  • ⅓ cup whole milk
  • ½ tsp kosher salt
  • ¼ tsp black pepper
  • 1 tbsp olive oil
  • ½ small red onion, thinly sliced
  • 2 cloves garlic, minced
  • 5 oz baby spinach, about 5 packed cups
  • 4 oz feta, crumbled (about 1 cup)
  • ½ cup cherry tomatoes, halved (optional)

Cook to 160°F inside (check with a thermometer).

Steps

  1. Heat the oven to 375°F (190°C) with a rack in the middle.
  2. Whisk the eggs, milk, salt and pepper in a bowl until completely smooth.
  3. Heat the oil in a 10-inch oven-safe skillet over medium heat. Add the onion and cook until soft.
  4. Add the garlic and stir for 30 seconds until it smells fragrant.
  5. Add the spinach a handful at a time, stirring until it all wilts.
  6. Spread the vegetables evenly over the bottom of the pan and pour in the eggs.
  7. Scatter the feta and tomatoes, if using, over the top.
  8. Cook on the stove without stirring until the edges begin to set.
  9. Move the skillet to the oven and bake until the center is set and puffed and no liquid egg runs when you cut a small slit in the middle. The center should read 160°F (71°C).
  10. Use an oven mitt to take out the skillet (the handle is hot). Let the frittata rest, then loosen the edges with a spatula and cut into wedges.

Tip: Pull it from the oven as soon as the center is set. Overbaked frittata turns spongy.

Tip: Cast iron should be well seasoned, or rub it with an extra teaspoon of oil so the eggs release.

Storage: Refrigerate wedges up to 4 days. Eat cold, or reheat to 165°F (74°C).

Estimated nutrition per serving: 210 calories · protein 14 g · carbohydrates 4 g · fiber <1 g · sugars 1 g · fat 15 g (saturated 6 g) · sodium 500 mg. Estimate from USDA FoodData Central; not medical or dietary advice. Based on 9 of 9 ingredients.