Name: Portobello Egg Bake
Prep time: 5 min
Cook time: 20 min
Total time: 25 min
Cuisine: American
Ingredients: 2 large portobello mushroom caps; 2 eggs (medium or small recommended); 1 tablespoon olive oil or melted butter; 1/4 teaspoon salt; 1/4 teaspoon black pepper; 1/4 cup shredded cheese (cheddar, mozzarella, or parmesan); 1 clove garlic, minced (or 1/4 teaspoon garlic powder); Optional toppings: cherry tomatoes (halved), fresh spinach, cooked bacon or sausage, chopped fresh herbs

Why You’ll Love This Recipe

This recipe is simple, satisfying, and packed with flavor. The meaty texture of portobello mushrooms makes them a great low-carb substitute for bread or crust, while the egg provides a protein boost. It’s customizable, keto-friendly, gluten-free, and perfect for meal prep. Best of all, it’s baked in the oven with minimal cleanup required.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

large portobello mushroom caps
eggs
olive oil or melted butter
salt
pepper
shredded cheese (cheddar, mozzarella, or parmesan)
garlic (minced or powder)
optional toppings: cherry tomatoes, spinach, cooked bacon or sausage, fresh herbs

Directions

Preheat your oven to 400°F (200°C).
Clean the portobello mushrooms by gently wiping with a damp cloth and removing the stems and gills.
Lightly brush both sides of each cap with olive oil or melted butter and place them gill-side up on a baking sheet lined with parchment paper.
Sprinkle with salt, pepper, and garlic.
Crack one egg into each mushroom cap.
Add shredded cheese and any optional toppings.
Bake in the preheated oven for 15–20 minutes, or until the egg whites are set and yolks are cooked to your preference.
Remove from the oven and let cool slightly before serving. Garnish with fresh herbs if desired.

Servings and timing

This recipe makes 2 servings.
Prep time: 5 minutes
Cook time: 15–20 minutes
Total time: 20–25 minutes

Variations

Make it spicy: Add chopped jalapeños or a dash of hot sauce.
Add greens: Layer fresh spinach or kale under the egg before baking.
Use different cheese: Try feta, goat cheese, or Swiss for a new flavor twist.
Include protein: Crumbled bacon, sausage, or smoked salmon work well.
Try seasoning blends: Add Italian seasoning, paprika, or za’atar for more depth.

Storage/Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days.
Reheat in a 350°F (175°C) oven for 10–12 minutes or in the microwave for 30–60 seconds. For best texture, oven reheating is recommended.

FAQs

How do I prevent the mushroom caps from getting soggy?

Pre-baking the caps for 5 minutes before adding the eggs can help reduce excess moisture.

Can I make these ahead of time?

Yes, you can bake them in advance and reheat as needed. They store well in the fridge for a few days.

Do I need to remove the gills from the mushrooms?

It’s recommended, as the gills can release moisture and affect the texture. Removing them also creates more space for the egg.

What size eggs work best?

Medium or small eggs fit best in standard portobello caps. If using large eggs, you may need to remove a bit of white to prevent overflow.

Can I cook this on the stovetop?

This recipe is best baked in the oven, but you can try covering a skillet and cooking over low heat until the egg sets.

Are Portobello Egg Bakes keto-friendly?

Yes, they are naturally low in carbs and high in protein and healthy fats, making them great for a keto diet.

What can I serve with this dish?

Serve with a fresh salad, roasted vegetables, or toast for a more complete meal.

Can I use baby portobello mushrooms?

Baby bellas are too small for eggs, but you can chop them and use them as a filling in baked egg cups or frittatas.

How do I know when the egg is fully cooked?

The whites should be set and opaque. If you like a runny yolk, keep an eye on them and remove as soon as the white firms up.

Can I freeze these?

Freezing is not recommended as the texture of the mushrooms and eggs can become rubbery when thawed and reheated.

Conclusion

Portobello Egg Bake is a simple, nutritious, and versatile dish that’s perfect for any meal of the day. With endless topping options and minimal prep time, it’s a great way to enjoy a healthy and satisfying meal without the fuss. Try it once, and it just might become a staple in your weekly routine.