← BlogJune 28, 2026

How to Make the Perfect Mushroom and Spinach Omelette

French · Easy · 13 min · 1 servings

VegetarianGluten-FreeLow-Carb
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This fluffy mushroom and spinach omelette is a protein-packed breakfast that comes together in under 15 minutes with minimal effort. It is light yet filling, making it a perfect way to start any morning on a nutritious note.

Why this recipe works

This Mushroom and Spinach Omelette recipe has been crafted to deliver restaurant-quality results in your home kitchen. At just 13 minutes from start to finish, it fits perfectly into a busy schedule without sacrificing flavor. Each serving comes in at 280 calories with 19g of protein, making it a balanced choice for any meal.

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What you will need

This recipe uses 6 simple ingredients that you can find at any grocery store:

  • 3 large eggs
  • 150 g button mushrooms sliced
  • 1 cup fresh baby spinach
  • 2 tbsp unsalted butter divided
  • 0.25 cup shredded gruyere cheese
  • 1 pinch salt and black pepper

Step by step instructions

Step 1: Cook the Filling

Melt 1 tablespoon of butter in a non-stick skillet over medium-high heat and add the sliced mushrooms. Cook for 4 minutes until golden, then add spinach and stir until wilted, about 1 minute. Transfer to a plate.

Step 2: Whisk the Eggs

Crack the eggs into a bowl, add a pinch of salt and pepper, and whisk vigorously with a fork until the yolks and whites are fully combined and slightly frothy.

Step 3: Cook the Omelette Base

Melt the remaining butter in the same pan over medium heat and pour in the egg mixture. Use a spatula to gently push the cooked edges toward the center while tilting the pan to let raw egg flow outward.

Step 4: Fill and Fold

When the top is just barely set, add the mushroom and spinach filling to one half of the omelette and sprinkle the gruyere cheese over the filling. Fold the omelette in half and slide it onto a plate to serve.

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Easy substitutions

Missing an ingredient? Here are some swaps that work perfectly:

  • gruyere cheese → cheddar or Swiss cheese
  • button mushrooms → shiitake or oyster mushrooms for a more complex flavor

Common mistakes to avoid

Watch out for these pitfalls that can affect your results:

  • Cooking the omelette on too high heat which makes it rubbery and browned on the outside
  • Waiting until the eggs are fully set before folding which makes it difficult to roll without cracking

Nutrition facts

Per serving: 280 calories, 19g protein, 5g carbs, 20g fat, 1g fiber.

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