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Sicilian-Style Sweet-and-Sour Tuna Steaks

Sicilian-Style Sweet-and-Sour Tuna Steaks balance briny richness with a bright, tangy-sweet glaze from red wine vinegar and sugar. Caramelized onions add depth and gentle sweetness, enveloping the seared fish in a glossy sauce. Serve for a festive seafood course like the Feast of the Seven Fishes or as an elegant weeknight dinner when you want bold, balanced flavors.

  • Prep5 mins
  • Cook35 mins
  • Serves4
  • DifficultyEasy
Sicilian-Style Sweet-and-Sour Tuna Steaks

easyChef Pro health score

Calculated from USDA-referenced nutrient data for the ingredients in Sicilian-Style Sweet-and-Sour Tuna Steaks, not estimated by an AI model. The same recipe returns the same score every time.

36 Health Score
Glycemic ImpactPoor
20 / 100
Carb quality, not quantity. Higher is better.
Nutritional DensityPoor
11 / 100
Nutrients per calorie. Higher is better.
Energy DensityGood
90 / 100
Calories by weight. Higher means more food for fewer calories.
NOVA Processed Culinary Ingredients
2 / 4
Processing level, 1 (whole) to 4 (ultra-processed). Lower is better.

How it scores for each health goal

The same recipe scores differently against different goals, because the goal changes the calculation rather than filtering a list. Set your goal in easyChef Pro and every recipe is scored against it.

40
Heart Health
54
Metabolic
24
Digestive
34
Inflammatory
56
Performance
37
General Wellness
  1. 1

    Heat olive oil in a heavy-bottomed skillet over medium heat. Cook and stir the onion in the hot oil until softened and translucent, about 5 minutes. Lower the heat to medium-low. Keep cooking and stirring until the onion is very tender and deeply browned, 15 to 20 minutes more. Transfer the onion to a plate.

  2. 2

    Add the tuna steaks to the same skillet over medium-high heat and cook until golden brown, about 2 minutes per side. Move the tuna steaks to a serving tray; keep them warm.

  3. 3

    Stir the vinegar and sugar together in the same skillet until the sugar dissolves. Return the onion to the skillet and simmer until the liquid reduces and slightly thickens, about 5 minutes. Put the tuna steaks back in the skillet and cook for 3 to 5 minutes. Transfer the tuna to the warm serving tray and spoon the onion and sauce on top.

About This Recipe

Sicilian Style Sweet and Sour Tuna Steaks is an Italian dinner recipe made with 5 ingredients. It takes about 40 mins, serves 4, and is rated easy. Key ingredients include Olive Oil, Red Wine Vinegar, Sugar, and Tuna Steak Dish. Each serving provides about 442.39 kcal, and is a good source of protein.

Recipe Questions

What is Sicilian-Style Sweet-and-Sour Tuna Steaks?
It is an Italian recipe made with 5 ingredients, usually served for dinner or lunch.
What is Sicilian-Style Sweet-and-Sour Tuna Steaks made of?
The main ingredients are Olive Oil, Red Wine Vinegar, Sugar, Tuna Steak Dish, Yellow Onion. The full list of 5 is above.
What goes well with Sicilian-Style Sweet-and-Sour Tuna Steaks?
Explore these Italian side-dish recipes.
How long does it take to make Sicilian-Style Sweet-and-Sour Tuna Steaks?
About 40 mins in total: 5 mins to prepare and 35 mins to cook.
How many calories are in one serving?
One serving provides about 442.39 kcal. The full nutrition breakdown is above.
Is Sicilian-Style Sweet-and-Sour Tuna Steaks easy to make?
This recipe is rated easy, with 5 ingredients and 3 steps.
Is Sicilian-Style Sweet-and-Sour Tuna Steaks healthy?
Sicilian-Style Sweet-and-Sour Tuna Steaks has an easyChef Pro health score of 36/100. Per serving, it provides 442.39 calories and 33.3 g of protein, or 67% of the Daily Value. Worth noting per serving: sodium at 486.72 mg (21% of the Daily Value) and saturated fat at 1.37 g (7% of the Daily Value). It contains Fish, Onions and Alcohol, so it may not be suitable for people with those allergies or dietary restrictions. Whether it fits your goals depends on your complete meal plan and nutritional needs. Remix it in easyChef Pro to adjust the ingredients and generate fresh nutrition and scores.

How easyChef Pro scores recipes and products

easyChef Pro analyzes up to 41 nutrients using data sourced from USDA and other verified food databases. Its scoring method uses the nutrients relevant to nutrition quality, calorie density, processing level, and your selected health goal. Recipes and food products get a health score from 0 to 100, calculated using consistent rules instead of being estimated by AI. The same nutrition data, serving size and health goal will produce the same result.

The calculation evaluates nutrients, calorie density, processing level, and how well the food supports your selected health goal. Protein, fiber, vitamins, minerals and other beneficial nutrients can strengthen the score. High amounts of sodium, saturated fat, added sugar and other nutrients may lower it.

Your health goal also matters. easyChef Pro evaluates recipes and products across six health areas and adjusts their importance for your selected goal. This means the same food may be a better fit for one health goal than another.

For recipes, changing an ingredient, quantity or serving size changes the nutrition and may change the score. Remix the recipe in easyChef Pro to calculate fresh nutrition and scores for the version you actually make. Product scores are based on the nutrition and serving information associated with that specific product.

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