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Easy Crustless Quiche Or Baked Spanish Tortilla

In Spain, the tortilla de patatas is an omelet-like dish, traditionally made by frying egg mixed with potatoes and onions on both sides in a pan. On my visit to Málaga, Spain in early 2010, my host attempted to show me how to make tortillas, only to have the whole mixture fall apart in the pan. Instead of one big torte, we ended up with something resembling scrambled eggs.

In any case, I haven't tried to repeat the dish the traditional way since. It takes time to stand over a hot stove and wait for the eggs to cook all the way through, and to keep them from sticking you end up using copious amounts of oil.

So, I opted for making a less oily version of the traditional dish. This recipe was inspired by something over at Zoom Yummy, but highly modified to fit the ingredients I'd picked up at the local Farmer's Market. You could also call this a crustless quiche. The quiche has many of the same basic ingredients as a Spanish tortilla.

I originally made this quiche using small blue potatoes picked up at the Bloomington Farmer's Market. I didn't think the flavor of the blue potatoes was especially exemplary-they ended up tasting identical to regular potatoes. But they looked beautiful when sliced into rings for my baked tortilla.

The potatoes look purple, don't they? And they have beautiful patterns inside the rings. Too bad I have to cover them up with eggs for the recipe.

Baked Spanish Tortilla With Blue Potatoes And Yellow Squash

The beauty of this recipe is its flexibility. The photos in this post are of three different versions of the same basic recipe, using a variety of vegetables, herbs, and spices for flavor. Tomatoes, fresh basil, and feta cheese are a delicious combination, and zucchini and herb de provence haven't failed me yet. However, the classic combination of potatoes and onions is a winning favorite. Which one do you prefer?


  • 8 small potatoes
  • 1 large yellow squash
  • 1/2 white onion
  • 1/2 cup Spinach leaves
  • 4 eggs
  • 1/2 cup non-fat yogurt
  • 1/2 cup grated Swiss cheese
  • Salt and pepper to taste
  • Oil to grease the pan


  1. Spray baking dish with Pam, or lightly coat with oil of your choice.
  2. Thinly slice onions, potatoes, and yellow squash, and layer them with Spinach leaves in baking dish I used a Pyrex pie pan. Sprinkle salt and pepper over veggies in the pan.
  3. Beat eggs together with yogurt. If mixture is too thick to pour, add some milk or water to thin it out.
  4. Add grated Swiss cheese to egg mixture. Pour over vegetables, taking care that there is egg between each layer.
  5. Bake at 350 F for 30-40 minutes, or until eggs are fully set.

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