Sautéed Spinach and Shiitake Mushroom Egg White Omelette

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A light, protein-rich omelette filled with sautéed fresh spinach and shiitake mushrooms, ideal for a healthy brunch. This american-inspired brunch (vegetarian) ready in about 18 minutes pairs egg whites, fresh spinach leaves, shiitake mushrooms, sliced for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 150 calories and feeds 2, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart.

★ 4.4 (9 ratings) Prep: 8 min Cook: 10 min Serves 2 American cuisine 150 cal/serving
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Ingredients

Instructions

  1. Step 1: Heat 1 tbsp olive oil in a non-stick skillet over medium heat. Add 1 minced garlic clove and sauté for 30 seconds until fragrant.
  2. Step 2: Add 1 cup sliced shiitake mushrooms and cook for 4-5 minutes, stirring occasionally, until mushrooms are tender and lightly browned.
  3. Step 3: Add 2 cups fresh spinach leaves to the skillet and cook for 1-2 minutes until wilted. Season with 1/4 tsp salt and 1/8 tsp black pepper, then transfer mixture to a plate.
  4. Step 4: In a bowl, whisk 6 egg whites until slightly frothy.
  5. Step 5: Heat the same skillet over medium-low heat and pour in the egg whites, tilting the pan to spread evenly. Cook undisturbed for 2-3 minutes until edges begin to set.
  6. Step 6: Spoon the sautéed spinach and mushroom mixture evenly over one half of the egg whites and sprinkle 2 tbsp grated Parmesan cheese on top.
  7. Step 7: Using a spatula, carefully fold the omelette in half and cook for another 1 minute until the cheese melts and egg whites are fully set.
  8. Step 8: Slide the omelette onto a plate and serve immediately.

Frequently asked questions

How long does Sautéed Spinach and Shiitake Mushroom Egg White Omelette take to make?

Total time is about 18 minutes (8 min prep + 10 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Sautéed Spinach and Shiitake Mushroom Egg White Omelette?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep egg whites from drying out.

Can I substitute ingredients in Sautéed Spinach and Shiitake Mushroom Egg White Omelette?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Sautéed Spinach and Shiitake Mushroom Egg White Omelette for a different number of people?

The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Sautéed Spinach and Shiitake Mushroom Egg White Omelette vegetarian?

Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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