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Spinach Bars
GourmetDinnerHealthy Eating

Spinach Bars

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
★★★★★ 4.9 (41 reviews)
Quick Summary Answer
⏱️ 4 min read read📅 Updated: June 15, 2026

This chef-curated Spinach Bars 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 22g of muscle-fueling protein per serving for lasting satiety.
  • ✓Portion-balanced at 384 calories per serving with wholesome, unrefined ingredients.
  • ✓Masterclass temperature checkpoints ensure maximum tenderness and flavor development.

The Story

This chef-curated Spinach Bars 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 Spinach Bars 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 Spinach Bars, focus on fresh aromatics, dry surface contact for proper searing, and allowing the food to rest before serving.

Ingredients & Measurements

  • 3 tablespoons butter
  • 3 eggs
  • 1 cup milk
  • 1 cup all-purpose flour
  • 1 teaspoon salt
  • 1/2 teaspoon ground black
  • pepper
  • 1 teaspoon baking powder
  • 1 1/2 teaspoons minced garlic
  • 1/2 cup chopped fresh
  • mushrooms
  • 1 small onion, chopped
  • 4 cups shredded Cheddar cheese
  • 1 (10 ounce) package frozen
  • chopped spinach, thawed and
  • drained

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 the oven to 350 degrees F (175 degrees C)

Step 2: Technique & Execution

Melt butter in a 9x13 inch baking dish while the oven preheats

Step 3: Technique & Execution

In a large bowl, whisk together the eggs, milk, flour, salt, pepper, baking powder and garlic until well blended

Step 4: Technique & Execution

Add the mushrooms, spinach and cheese, and stir to blend evenly

Step 5: Technique & Execution

Tip the baking dish to coat with melted butter, then pour the spinach mixture into the pan

Step 6: Technique & Execution

Bake for 30 minutes in the preheated oven, until firm and golden

Chef's Pro Tips & Variations

Nutritional Profile per Serving

MetricAmountDietary Benefit
Calories384 kcalControlled caloric load for steady metabolic burn
Protein22gHigh-biological-value protein for tissue maintenance
Carbohydrates17gComplex, slow-digesting dietary fiber
Fat20gWholesome dietary lipids for micronutrient absorption

Spinach Bars

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

★★★★★4.9 from 41 votes
Spinach Bars
CourseDinner
Prep Time20 mins
Cook Time30 mins
Total Time50 mins
Servings4
AuthorStewart Lucas

Macro Nutrition Profile (Per Serving)

Calories19% DV
384 kcal
Protein44% DV
22g
Fat26% DV
20g
Carbs6% DV
17g
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 the oven to 350 degrees F (175 degrees C)

2

Technique & Execution: Melt butter in a 9x13 inch baking dish while the oven preheats

3

Technique & Execution: In a large bowl, whisk together the eggs, milk, flour, salt, pepper, baking powder and garlic until well blended

4

Technique & Execution: Add the mushrooms, spinach and cheese, and stir to blend evenly

5

Technique & Execution: Tip the baking dish to coat with melted butter, then pour the spinach mixture into the pan

6

Technique & Execution: Bake for 30 minutes in the preheated oven, until firm and golden

30:00

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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/eggs 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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