Leek and Mushroom Frittata
A rustic, open-faced Italian omelette packed with tender sautéed leeks and earthy mushrooms. Light, fluffy eggs bind everything together, finished with a golden top and a sprinkle of cheese. Perfect for brunch or a quick weeknight dinner.
For 4 servings
- prep
Preheat the oven and whisk the eggs.
1.Preheat the oven to 350°F (175°C).2.In a large bowl, whisk together the eggs, milk, half the parmesan, salt, pepper, and thyme leaves until well combined. - saute
Sauté the leeks and mushrooms.
1.Heat the olive oil in a 10-inch oven-safe skillet over medium heat.2.Add the sliced leeks and cook until softened (4-5 minutes).3.Add the sliced mushrooms and garlic, then sauté until the mushrooms release their liquid and start to brown (5-7 minutes).TIPDon't crowd the mushrooms — give them space so they sear instead of steam. - mix
Combine the eggs with the vegetables.
1.Spread the leek and mushroom mixture evenly across the skillet.2.Give the egg mixture one final whisk and pour it over the vegetables.3.Gently stir once to distribute, then let it cook undisturbed on the stovetop for 2-3 minutes until the edges just start to set. - bake · ~13 min
Bake the frittata until puffed and set.
1.Transfer the skillet to the preheated oven.2.Bake for 12-15 minutes, or until the center is just set and no longer jiggles when you shake the pan.TIPWatch carefully in the last 2 minutes — over-baking makes the frittata dry and rubbery. - garnish
Finish and serve.
1.Remove the skillet from the oven and sprinkle the remaining parmesan over the top.2.Let it rest for 5 minutes before slicing into wedges.TIPRun a spatula around the edge to loosen it, then slide the whole frittata onto a plate for easier slicing.
What to keep in mind.
6 tips from the recipe — small details that make a real difference to the final dish.
- 1Wash leeks thoroughly by slicing them lengthwise and rinsing under cold water to remove hidden grit.
- 2Pat mushrooms dry with a paper towel before slicing so they brown instead of steam.
- 3Use a well-seasoned or nonstick oven-safe skillet to prevent the frittata from sticking.
- 4Whisk the eggs vigorously until slightly frothy for a lighter, airier texture.
- 5Let the frittata rest for 5 minutes after baking to allow it to set fully before slicing.
- 6Store leftovers in the fridge for up to 3 days; reheat gently in a low oven or microwave.
Adapt it for your goals.
Cheese swap
Replace Parmesan with crumbled feta or grated Gruyère for a tangier or nuttier flavor profile.
protein boostProtein boost
Add 100g of cooked crumbled sausage or diced ham along with the leeks for a heartier meal.
veganVegan
Substitute eggs with a chickpea flour batter (1 cup chickpea flour + 1 cup water) and use nutritional yeast instead of Parmesan.
herb variationHerb variation
Swap thyme for fresh rosemary or chives to complement the earthy mushrooms differently.
Why this is on our healthy list.
Rich in Protein
Eggs provide high-quality, complete protein that supports muscle repair and satiety.
Good Source of Fiber
Leeks and mushrooms contribute dietary fiber that aids digestion and gut health.
Low in Carbohydrates
This frittata is naturally low-carb, making it suitable for low-carb or keto-friendly diets.
Packed with Antioxidants
Mushrooms contain selenium and ergothioneine, compounds that help protect cells from oxidative stress.
Frequently asked questions
Yes, shiitake, oyster, or white button mushrooms all work; cremini add the most earthy flavor.







