Eggland's Best: Caramelized Onion Mushroom Quiche

Eggland's Best: Caramelized Onion Mushroom Quiche

This Eggland’s Best versatile dish can be eaten as breakfast or lunch but is also perfect as a dinner entrée too! It bakes until it is golden brown on top and then is served straight from the oven or allowed to cool for an hour for easier slicing.

Recipe Summary

Prep Time: 20 Minutes
Cook Time: 40 Minutes
Total Time: 1 Hour
Yield: 6 Servings

Ingredients:

• 1 9" deep-dish frozen pie crust *or your favorite crust

• 2 tablespoons extra virgin olive oil

• 1 medium onion diced

• 6 ounces sliced mushrooms washed and patted dry

• ½ teaspoon dry or fresh thyme

• 3 Eggland's Best eggs, large

• 2 Eggland's Best eggs, large - egg yolks

• 1 cup whole milk

• 4 ounces sharp white cheddar freshly shredded

• 4 ounces sharp yellow cheddar freshly shredded

• salt & pepper to taste

Directions

Step 1: Preheat the Oven

Preheat your oven to 350°F (175°C).

Step 2: Sauté Vegetables

In a large frying pan, heat olive oil over medium heat. Add the diced onion, mushrooms, salt, and pepper. Stir occasionally, cooking until the onions and mushrooms are caramelized and browned, about 15 minutes.

Step 3: Prepare the Custard

In a large mixing bowl, whisk the Eggland's Best eggs, yolks, and milk together until the mixture is pale yellow and smooth.

Step 4: Assemble the Quiche

Layer half of the shredded cheese on the bottom of the pie crust. Spread the caramelized vegetables evenly over the cheese. Pour the egg custard mixture over the top. Sprinkle the remaining cheese over the filling.

Step 5: Bake to Perfection

Place the pie crust on a baking tray for stability. Bake in the preheated oven for 35–40 minutes, or until a knife inserted into the center comes out clean.

Step 6: Cool and Serve

Allow the quiche to cool for about an hour to set before slicing.

Serving Suggestions 

This quiche pairs perfectly with:

• Fresh green salad – with a light vinaigrette for a refreshing balance.
• Crusty bread or croissants – for a delicious brunch experience.
• Crispy bacon or sausage – for extra protein.
• A glass of white wine or sparkling juice – for a more elegant meal.

Why You’ll Love This Recipe

✔️ High in Protein & Nutrients – Eggland’s Best eggs add essential vitamins and omega-3s.
✔️ Easy & Customizable – Swap out ingredients based on what you have on hand.
✔️ Perfect for Meal Prep – Make ahead and enjoy all week!
✔️ Gluten-Free Option – Use a crustless version for a low-carb meal.
✔️ Crowd-Pleasing & Elegant – Great for brunch gatherings or a cozy dinner.

Expert Tips & Variations

• Want a Lighter Version? – Use low-fat milk and reduced-fat cheese.
• Want More Veggies? – Add spinach, bell peppers, or sun-dried tomatoes.
• Need It Dairy-Free? – Substitute plant-based milk and dairy-free cheese.
• Crustless Option? – Skip the crust and bake in a buttered pie dish for a low-carb quiche.
• Make It Spicy! – Add chopped jalapeños or red pepper flakes.
• Add More Protein! – Mix in diced ham, cooked bacon, or crumbled sausage.

Storage & Meal Prep Tips

Can I make quiche ahead of time?

Yes! You can:

• Prepare the filling the night before and refrigerate.
• Assemble and bake in the morning.

How do I store leftovers?

• Refrigerator: Store in an airtight container for up to 3 days.
• Freezer: Wrap the fully baked quiche in plastic wrap and aluminum foil. Freeze for up to 3 months.

How do I reheat quiche?

• Oven: Bake at 350°F for 10-15 minutes.
• Microwave: Heat individual slices for 30-45 seconds.

(Tip: Reheating in the oven maintains the best texture!)

Love cooking with Eggland’s Best? Discover a new favorite with our Eggland's Best Breakfast Gorditas

FAQs

Q: Can I use a homemade crust instead of frozen?

A: Absolutely! A homemade buttery crust adds even more flavor and texture to this quiche.

Q: Can I make this quiche dairy-free?

A: Yes, substitute plant-based milk and cheese to create a dairy-free version.

Q: How do I know when the quiche is fully cooked?

A: A knife inserted into the center should come out clean, and the top should be golden brown.

Q: Can I freeze quiche?

A: Yes, wrap the fully baked quiche tightly in plastic wrap and aluminum foil, then freeze for up to 3 months. Thaw overnight in the refrigerator and reheat before serving.