Healthy Dinner Spinach Mushroom Frittata

Name: Healthy Dinner Spinach Mushroom Frittata
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Yield: 4 servings
Ingredients: 6 large eggs; 2 cups fresh spinach, chopped; 1 cup mushrooms, sliced; 1/2 cup onion, diced; 1/2 cup milk; Salt and pepper to taste; 1 tablespoon olive oil

Highlighted under: Clean Food

I love making this Healthy Dinner Spinach Mushroom Frittata when I want something quick, nutritious, and satisfying. It features fresh spinach, earthy mushrooms, and a perfectly set egg base that brings everything together. What's great is that it cooks in just one pan, making cleanup a breeze. Plus, it's incredibly versatile—you can throw in any leftover veggies you have. This dish is not just a dinner option; it’s perfect for brunch or even a light lunch. You’ll savor every bite!

Created by

Zadie Whitmore

Last updated on 2026-01-11T19:23:35.918Z

When I first experimented with this frittata, I was amazed at how few ingredients could create such a rich, satisfying meal. The combination of spinach and mushrooms is not only delicious but also packed with nutrients. Every time I make it, I play around with different herbs, and I've found that a touch of thyme really elevates the flavors, balancing the earthiness of the mushrooms beautifully.

What really seals the deal for me is the cooking method. Using a skillet made for both stovetop and oven ensures a perfect bake. I always start it on the stovetop and then finish it in the oven, which gives the frittata that lovely golden top while keeping the inside fluffy. It’s become a staple in our home!

Why You’ll Love This Recipe
Packed with nutrients from spinach and mushrooms
Easy to prepare and clean up—cooks all in one pan
Customizable with your favorite vegetables and herbs

Maximizing Flavor with Fresh Ingredients

The fresh spinach and mushrooms in this frittata are not just nutritious—they also contribute significantly to the flavor profile. Fresh spinach adds a mild, slightly sweet note that balances the earthiness of the mushrooms beautifully. Opt for baby spinach for a more delicate texture. Sautéing the mushrooms and onions first releases their natural sugars, enhancing their flavor. For a bolder taste, consider using shiitake or portobello mushrooms; they have a meaty texture that complements the dish well.

The importance of fresh eggs cannot be overstated in this recipe. They provide structure and moisture, allowing the frittata to hold together while remaining tender and fluffy. If you find yourself with an abundance of eggs, this dish is ideal for utilizing them. Alternatively, you can use egg whites for a lighter version, adjusting the milk accordingly to maintain a good texture.

Cooking Technique Tips

When cooking the vegetables, make sure to sauté them until they are just soft, which usually takes about 5-7 minutes. This helps to develop their flavors without losing their structure. If you're pressed for time, you can also microwave the chopped spinach beforehand; just be sure to drain any excess water before adding it to the skillet. This technique helps avoid a watery frittata, ensuring a perfect set when baked.

Another key aspect is cooking the frittata over medium-low heat before transferring it to the oven. This initial stovetop cooking allows the edges to set nicely, ensuring the frittata retains its shape once baked. Keep an eye on it; once you see the edges starting to pull away from the pan and firm up, it’s time to pop it in the oven. Baking until golden and firm in the center not only enhances flavor but also creates a visually appealing dish.

Ingredients

Main Ingredients

6 large eggs
2 cups fresh spinach, chopped
1 cup mushrooms, sliced
1/2 cup onion, diced
1/2 cup milk
Salt and pepper to taste
1 tablespoon olive oil

Instructions

Preheat the Oven

Preheat your oven to 375°F (190°C).

Sauté Vegetables

In an oven-safe skillet, heat the olive oil over medium heat. Add the onions and mushrooms, cooking until softened, about 5 minutes. Then, stir in the chopped spinach and cook for another 2 minutes until wilted.

Prepare the Egg Mixture

In a bowl, whisk together the eggs, milk, salt, and pepper until well combined.

Combine and Cook

Pour the egg mixture over the sautéed vegetables in the skillet. Cook on medium-low for about 5 minutes, or until the edges start to set.

Bake

Transfer the skillet to the preheated oven and bake for 15-20 minutes, or until the center is firm and the top is slightly golden.

Cool and Serve

Let the frittata cool for a few minutes before slicing. Serve warm or at room temperature.

Pro Tips

Feel free to add cheese or other vegetables like bell peppers or zucchini for additional flavor and texture. Frittatas are also excellent for using up leftovers from the week!

Storage and Make-Ahead Tips

This frittata can be made ahead of time, making it a fantastic option for meal prep. Once cooked, allow it to cool completely, then wrap it tightly in plastic wrap or store it in an airtight container in the fridge. It will keep well for up to 4 days. You can enjoy it cold or reheat individual slices in the microwave for about 30-60 seconds, just until warmed through.

If you want to store it for longer, you can freeze slices of the frittata. Wrap them tightly in plastic wrap and place them in a freezer-safe container. Thaw overnight in the refrigerator before reheating. Freezing may affect the texture slightly, so be mindful of this when making a large batch.

Variations and Customizations

One of the great things about frittatas is their versatility. Feel free to swap in other vegetables based on what you have on hand or what's in season. Bell peppers, zucchini, or even leftover roasted vegetables work well. Just ensure they are cooked properly before adding to the egg mixture, as this will help maintain the overall texture of the dish.

For additional flavor, consider adding cheese. Feta or goat cheese adds a nice saltiness, while shredded cheddar or mozzarella can bring a creamy richness to the mix. Simply sprinkle your cheese of choice on top before baking, allowing it to melt and bubble, creating an appetizing golden crust.

Questions About Recipes

→ Can I use frozen spinach instead of fresh?

Yes, just make sure to thaw and drain any excess water from the frozen spinach before using it.

→ How do I store leftovers?

Store leftovers in an airtight container in the fridge for up to 3 days. You can reheat slices in the microwave or enjoy them cold.

→ Can I make this frittata ahead of time?

Definitely! Prepare it the night before, let it cool, and refrigerate. You can heat it up before serving.

→ What can I serve with this frittata?

This frittata pairs well with a simple green salad or some crusty bread for a complete meal.