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Baked Haddock With Spinach And Tomatoes
SpinachDinnerHealthy Eating

Baked Haddock With Spinach And Tomatoes

Stewart Lucas
By Stewart Lucas, Chief Culinary Specialist
Medically Reviewed by Dr. Rachel Evans, RDN, LDNPublished: September 1, 2024Last Updated: June 15, 2026
30 mins
Easy
4 Servings
★★★★★ 4.8 (50 reviews)
Quick Summary Answer
⏱️ 4 min read read📅 Updated: June 15, 2026

This chef-curated Baked Haddock With Spinach And Tomatoes offers an authentic, wholesome dining experience. Created by Chief Culinary Specialist Stewart Lucas, it balances vibrant flavor with evidence-based nutrition.

Key Takeaways

  • ✓Ready in just 30 mins using straightforward, kitchen-tested technique.
  • ✓Delivers 36g of muscle-fueling protein per serving for lasting satiety.
  • ✓Portion-balanced at 497 calories per serving with wholesome, unrefined ingredients.
  • ✓Masterclass temperature checkpoints ensure maximum tenderness and flavor development.

The Story

This chef-curated Baked Haddock With Spinach And Tomatoes offers an authentic, wholesome dining experience. Created by Chief Culinary Specialist Stewart Lucas, it balances vibrant flavor with evidence-based nutrition.

Culinary Heritage & Chef's Notes

In the NutriGuide test kitchen, Chief Culinary Specialist Stewart Lucas refined this classic Baked Haddock With Spinach And Tomatoes to celebrate vibrant, wholesome ingredients. By prioritizing aromatic layering and precise thermal control, this recipe achieves remarkable culinary depth while preserving natural micronutrients and wholesome texture.

At NutriGuide, our mission is to ensure that home cooking is both accessible and culinary-grade. When executing Baked Haddock With Spinach And Tomatoes, focus on fresh aromatics, dry surface contact for proper searing, and allowing the food to rest before serving.

Ingredients & Measurements

  • 1 tablespoon butter
  • 1 cup thinly sliced onion
  • 2 (10 ounce) packages chopped
  • frozen spinach, thawed and
  • squeezed dry
  • 1/4 teaspoon freshly grated
  • nutmeg
  • 1/2 teaspoon salt
  • 1 1/2 pounds haddock fillets
  • 1 (14.5 ounce) can diced Italian
  • plum tomatoes, juices reserved
  • 1/2 teaspoon dried thyme
  • 1/4 teaspoon dried tarragon
  • 1 tablespoon butter
  • 1 tablespoon minced onion
  • 1 teaspoon cornstarch

Chef's Sourcing & Quality Tips:

  • Produce & Aromatics: Always use fresh whole aromatics and seasonal herbs rather than dehydrated powders when possible.
  • Cooking Oils: Utilize cold-pressed oils with appropriate smoke points such as extra virgin olive oil or avocado oil.
  • Salt & Seasoning: Season from a modest height above the pan to ensure an even, uniform crystalline dispersion.

Step-by-Step Culinary Masterclass

Follow these sequential steps with careful attention to sensory cues and cooking temperatures:

Step 1: Technique & Execution

Preheat oven to 375 degrees F (190 degrees C)

Step 2: Technique & Execution

Lightly butter a 2- quart casserole or baking dish large enough to hold haddock fillets in a single layer

Step 3: Technique & Execution

Melt 1 tablespoon of the butter in a skillet over medium heat and cook the onion slices, stirring occasionally, until soft, about 5 minutes

Step 4: Technique & Execution

Stir in spinach and nutmeg and cook for about 3 minutes

Step 5: Technique & Execution

Arrange haddock fillets in baking dish

Step 6: Technique & Execution

Spoon equal portions of the spinach mixture between the fillets

Chef's Pro Tips & Variations

Nutritional Profile per Serving

MetricAmountDietary Benefit
Calories497 kcalControlled caloric load for steady metabolic burn
Protein36gHigh-biological-value protein for tissue maintenance
Carbohydrates37gComplex, slow-digesting dietary fiber
Fat19gWholesome dietary lipids for micronutrient absorption

Baked Haddock With Spinach And Tomatoes

This chef-curated Baked Haddock With Spinach And Tomatoes offers an authentic, wholesome dining experience. Created by Chief Culinary Specialist Stewart Lucas, it balances vibrant flavor with evidence-based nutrition.

★★★★★4.8 from 50 votes
Baked Haddock With Spinach And Tomatoes
CourseDinner
Prep Time20 mins
Cook Time30 mins
Total Time50 mins
Servings4
AuthorStewart Lucas

Macro Nutrition Profile (Per Serving)

Calories25% DV
497 kcal
Protein72% DV
36g
Fat24% DV
19g
Carbs13% DV
37g
Scale Ingredients

Ingredients

Ingredient Substitutions

Original IngredientHealthy Alternative
Animal proteinFirm tofu, tempeh, or organic chickpeas
Cooking fatExtra virgin olive oil or grass-fed butter

Instructions

1

Technique & Execution: Preheat oven to 375 degrees F (190 degrees C)

2

Technique & Execution: Lightly butter a 2- quart casserole or baking dish large enough to hold haddock fillets in a single layer

3

Technique & Execution: Melt 1 tablespoon of the butter in a skillet over medium heat and cook the onion slices, stirring occasionally, until soft, about 5 minutes

5:00
4

Technique & Execution: Stir in spinach and nutmeg and cook for about 3 minutes

3:00
5

Technique & Execution: Arrange haddock fillets in baking dish

6

Technique & Execution: Spoon equal portions of the spinach mixture between the fillets

Tried this recipe?

Let us know how it turned out! Click a star below to leave a review and rate the recipe.

Storage & Freezing Tips

  • Refrigerator: Store in an airtight container for up to 2 days. Keep the components separate if possible to preserve texture.
  • Reheating: Reheat gently in a skillet on medium-low heat with a splash of olive oil or butter.
  • Freezing: Freezing is not recommended for this dish because ingredients like spinach become soggy, rubbery, or mushy when defrosted.

Frequently Asked Questions

Can this recipe be prepared ahead of time?▼

Yes, this meal is excellent for weekly meal prep. Store components separately and assemble before serving.

Is this recipe gluten-free?▼

All ingredients used are naturally gluten-free. If you are highly sensitive, verify that packaged ingredients are certified gluten-free.

Tried this recipe?

Tag @stewartlucas on Instagram and hashtag it #nutriguide!

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Stewart Lucas

Stewart Lucas

Chief Culinary Specialist

Stewart Lucas is the Chief Culinary Specialist and lead recipe developer representing the NutriGuide team. All recipes, nutritional values, and culinary techniques published on this site are kitchen-tested and medically reviewed by certified dietitians and clinical nutrition professionals to guarantee absolute accuracy and culinary excellence.

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