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Seared Fish with Tomato Sauce and Caramelized Onions

A quick weeknight dinner featuring golden seared fish fillets topped with a rich tomato sauce and sweet caramelized onions, finished with fresh herbs for brightness.

Total time
35 min
Servings
4
Calories
320
Protein
35g
Seared Fish with Tomato Sauce and Caramelized Onions
comfortingweeknightmediterraneangluten-freedairy-freefishtenderflaky

Ingredients

  • 4 filets fish fillets
  • 3 tbsp olive oil
  • 2 medium onions
  • 1.5 cups canned crushed tomatoes
  • 2 cloves garlic
  • 1 tsp salt
  • ½ tsp black pepper
  • 2 tbsp fresh parsley

Instructions

  1. 1

    Pat the 4 fish fillets dry and season both sides with 1/2 tsp salt and 1/4 tsp pepper. Set aside.

  2. 2

    Heat 2 tbsp olive oil in a large skillet over medium. Add the 2 sliced onions and 1/2 tsp salt; cook, stirring occasionally, until deep golden and soft, about 15 minutes.

  3. 3

    Add the 2 minced garlic cloves and cook until fragrant, about 1 minute. Stir in the 1.5 cups crushed tomatoes and 1/4 tsp pepper; simmer until slightly thickened, about 5 minutes.

  4. 4

    Push the sauce to one side of the skillet. Add the remaining 1 tbsp olive oil to the empty side and place the fish fillets in a single layer. Sear until golden and cooked through, about 3-4 minutes per side.

  5. 5

    Spoon the tomato-onion sauce over the fish and sprinkle with the 2 tbsp chopped parsley. Serve hot.

  6. 6

    Optional: add a pinch of red pepper flakes or a splash of lemon juice to the sauce for extra brightness.

Tools you’ll need

  • large skillet
  • spatula
  • knife
  • cutting board

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