Tortilla with Tuna & Onions

March/April 1997

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Serve as a quick, light supper or as tapas with a glass of sherry.

Tortilla with Tuna & Onions

Makes: 4 servings

Active Time:

Total Time:


  • 2 1/2 teaspoons extra-virgin olive oil, divided
  • 2 onions, thinly sliced
  • 1/2 teaspoon salt, divided
  • 1/2 cup chopped fresh, or drained canned tomatoes
  • Freshly ground pepper to taste
  • 3 large eggs
  • 2 large egg whites
  • 1 6-ounce can chunk light tuna in water, drained and flaked (see Note)


  1. Heat 1 1/2 teaspoons oil in a medium nonstick skillet over medium-low heat. Add onions and 1/4 teaspoon salt. Cook, stirring often, until very tender and starting to turn light golden, 10 to 20 minutes. (Add 1 to 2 tablespoons water, if onions are browning too quickly.) Add tomatoes and cook, stirring occasionally, until tomatoes have melted into the onions, about 10 minutes. Season with pepper; set aside to cool.
  2. Whisk together eggs, egg whites and remaining 1/4 teaspoon salt in a bowl. Fold in tuna and reserved onion mixture with a rubber spatula.
  3. Wash pan, wipe dry and brush with remaining 1 teaspoon oil. Place over low heat. Add the egg mixture and stir gently to distribute tuna and onions. Cook over low heat until underside is golden and top is starting to set, about 5 minutes.
  4. Use a spatula to loosen tortilla, then slide it onto a plate. Invert it back into the pan and cook until the bottom is set, about 1 minute. Slide onto a serving platter and cut into wedges. Serve hot or at room temperature.

Tips & Notes

  • Note: Chunk light tuna, which comes from the smaller skipjack or yellowfin, has less mercury than canned white albacore tuna. The FDA/EPA advises that women who are or might become pregnant, nursing mothers and young children consume no more than 6 ounces of albacore a week; up to 12 ounces of canned light tuna is considered safe.


Per serving: 174 calories; 7 g fat (2 g sat, 4 g mono); 171 mg cholesterol; 8 g carbohydrates; 0 g added sugars; 19 g protein; 2 g fiber; 590 mg sodium; 298 mg potassium.

Nutrition Bonus: Selenium (71% daily value), Vitamin C (16% dv).

Carbohydrate Servings: 1/2

Exchanges: 1 vegetable, 1 1/2 lean meat, 1 fat

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Ease of Preparation
Total Time
45 minutes or less
Main Ingredient
Preparation/ Technique

March/April 1997
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