Sautéed Mushroom and Spinach Egg White Frittata
A light and healthy egg white frittata loaded with sautéed mushrooms and spinach, ideal for a nutritious brunch. This American-inspired brunch recipe (vegetarian, low fat), ready in about 25 minutes, combines egg whites, button mushrooms, fresh spinach leaves into a breakfast that fuels the morning without the midday crash — make-ahead-friendly and balanced enough to anchor the first meal of the day. Each serving lands at about 140 calories and feeds 3, so it sits comfortably in a weekly breakfast rotation alongside fruit, yogurt, or coffee. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 8 egg whites
- 1 cup, sliced button mushrooms
- 2 cups, roughly chopped fresh spinach leaves
- 1 tbsp olive oil
- 2, minced garlic cloves
- 1/2 tsp salt
- 1/4 tsp black pepper
- 1/4 cup grated Parmesan cheese
- 1 tbsp, chopped fresh parsley
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Equipment for this recipe
Tools this recipe's steps call for, with a link to each on Amazon.
Instructions
- Step 1: Preheat oven to 375°F (190°C). Heat 1 tbsp olive oil in an oven-safe skillet over medium heat. Add 2 minced garlic cloves and sauté for 30 seconds until fragrant.
- Step 2: Add 1 cup sliced button mushrooms and cook for 5 minutes until softened and golden.
- Step 3: Stir in 2 cups chopped fresh spinach and cook for another 2 minutes until wilted. Season with 1/2 tsp salt and 1/4 tsp black pepper.
- Step 4: In a bowl, whisk 8 egg whites until slightly frothy and pour evenly over the vegetables in the skillet.
- Step 5: Sprinkle 1/4 cup grated Parmesan cheese evenly on top and cook without stirring for 2 minutes until edges begin to set.
- Step 6: Transfer the skillet to the preheated oven and bake for 10-12 minutes until the egg whites are fully set and lightly golden.
- Step 7: Remove from oven, sprinkle with 1 tbsp chopped fresh parsley, slice, and serve warm.









