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Mushroom and Caramelized Onion Frittata

Name: Mushroom and Caramelized Onion Frittata
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Yield: 4 servings
Ingredients: 6 large eggs; 2 tablespoons olive oil; 1 medium onion, thinly sliced; 1 cup mushrooms, sliced; 2 tablespoons fresh parsley or chives, finely chopped; Salt and pepper, to taste

Category:

Breakfast/ Brunch

Difficulty: Easy

Serves:

4 people

Prep Time: 10 Minutes

Cook Time: 30 minutes

Rating:

(0.00/5)

July 26, 2025 by Chef Molly

A savory and hearty frittata filled with earthy mushrooms, sweet caramelized onions, and fresh herbs—perfectly fluffy and satisfying for breakfast or brunch.

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What You’ll Need:

6 large eggs
2 tablespoons olive oil
1 medium onion, thinly sliced
1 cup mushrooms, sliced
2 tablespoons fresh parsley or chives, finely chopped
Salt and pepper, to taste

Prepration for:Mushroom and Caramelized Onion Frittata

Step 1/6

Preheat oven to °F (°C).

Step 2/6

In an oven-safe skillet, heat olive oil over medium heat. Add onions, sautéing until caramelized, about - minutes.

Step 3/6

Add sliced mushrooms, cooking until softened and lightly browned, about minutes.

Step 4/6

In a bowl, whisk eggs with chopped herbs, salt, and pepper. Pour egg mixture over mushrooms and onions, evenly distributing the ingredients.

Step 5/6

Cook on the stovetop for - minutes until edges are set, then transfer skillet to the oven and bake for - minutes until fully set and lightly golden.

Step 6/6

Remove from oven, let cool briefly, then slice and serve warm.

Chef's Tips & Notes

Serve with fresh avocado slices or a simple green salad.

Use your favorite combination of mushrooms for enhanced flavor.

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SERVING

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Mushroom and Caramelized Onion Frittata

Directions

Step 1

Preheat oven to °F (°C).

Step 2

In an oven-safe skillet, heat olive oil over medium heat. Add onions, sautéing until caramelized, about - minutes.

Step 3

Add sliced mushrooms, cooking until softened and lightly browned, about minutes.

Step 4

In a bowl, whisk eggs with chopped herbs, salt, and pepper. Pour egg mixture over mushrooms and onions, evenly distributing the ingredients.

Step 5

Cook on the stovetop for - minutes until edges are set, then transfer skillet to the oven and bake for - minutes until fully set and lightly golden.

Step 6

Remove from oven, let cool briefly, then slice and serve warm.

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Mushroom and Caramelized Onion Frittata

What You’ll Need:

Prepration for:Mushroom and Caramelized Onion Frittata

Preheat oven to °F (°C).

In an oven-safe skillet, heat olive oil over medium heat. Add onions, sautéing until caramelized, about - minutes.

Add sliced mushrooms, cooking until softened and lightly browned, about minutes.

In a bowl, whisk eggs with chopped herbs, salt, and pepper. Pour egg mixture over mushrooms and onions, evenly distributing the ingredients.

Cook on the stovetop for - minutes until edges are set, then transfer skillet to the oven and bake for - minutes until fully set and lightly golden.

Remove from oven, let cool briefly, then slice and serve warm.

Chef's Tips & Notes

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Recipe Categories

NEXT RECIPES

Hemp Tahini Dressing (Gluten-Free, Dairy-Free, Soy-Free, Vegan)

Blackened Salmon with Saffron Rice, Black Beans, and Roasted Vegetables

Nordic Prawn and Salmon Canapés (Gluten-Free, Soy-Free, Dairy-Free)

Preheat oven to °F (°C).

In an oven-safe skillet, heat olive oil over medium heat. Add onions, sautéing until caramelized, about - minutes.

Add sliced mushrooms, cooking until softened and lightly browned, about minutes.

In a bowl, whisk eggs with chopped herbs, salt, and pepper. Pour egg mixture over mushrooms and onions, evenly distributing the ingredients.

Cook on the stovetop for - minutes until edges are set, then transfer skillet to the oven and bake for - minutes until fully set and lightly golden.

Remove from oven, let cool briefly, then slice and serve warm.

Need Some Help?

Categories

Quick Links

GET IN TOUCH