Broccoli Mushroom Quiche

Table of Contents

When you need something warm, filling, and packed with veggies, broccoli mushroom quiche delivers every time. With a flaky crust, creamy egg filling, and a mix of sautéed mushrooms and broccoli, it hits all the right notes. It works just as well for a casual brunch as it does for meal prep. You can eat it hot from the oven or enjoy a slice cold the next day. It’s flexible, delicious, and easy to make with ingredients you probably already have.

In this post, I’ll walk you through my go-to broccoli mushroom quiche recipe. I’ll also share how I discovered it, offer prep and storage tips, and help you make it your own.

Print

Why Broccoli Mushroom Quiche Became a Staple in My Kitchen

I didn’t grow up with quiche on the table. My grandmother was more into biscuits and stews. But when I moved into my first apartment and realized cereal wasn’t cutting it anymore, I started cooking meals that felt real. The first broccoli mushroom quiche I made used what I had in the fridge. Broccoli. Mushrooms. Eggs. Cheese. A frozen pie crust I found in the back of the freezer. I didn’t expect much, but it came out so good that I started making it regularly.

It reminded me of my grandmother’s rule that eggs could turn anything into dinner. That stuck with me. Quiche became my fallback whenever I had vegetables I needed to use up or when I wanted something comforting that didn’t feel too heavy. It helped me cook with purpose and flavor, even when my fridge looked a little empty.

The broccoli adds a fresh, slightly sweet bite. Mushrooms bring earthy flavor and make the quiche hearty. Sharp cheddar adds richness, while parmesan gives the top a golden finish. When baked into a buttery crust, it all comes together in a dish that feels cozy but still balanced.

If you’re into vegetable-packed dishes like my broccoli and mushroom stir fry or love baked meals with flavor like the shrimp and spinach casserole, then this quiche will be a perfect fit. It’s the kind of recipe you can serve for brunch or pack for lunch without overthinking it.

How to Make Broccoli Mushroom Quiche Step by Step

Simple ingredients that bring flavor

This broccoli mushroom quiche starts with a short list of ingredients that work together perfectly. You don’t need anything fancy. Everything here is easy to find and comes together quickly.

Here’s what you’ll need:

• 1 9-inch pie crust, homemade or store-bought
• 1 large egg
• 1 tablespoon milk (for egg wash)
• 2 tablespoons olive oil
• 1 clove garlic, minced
• 2 cups chopped broccoli florets
• 2 cups sliced mushrooms
• 3 large eggs (in addition to egg wash)
• 1 cup whole milk
• 1 cup shredded cheddar cheese
• ⅓ cup grated parmesan cheese

The crust holds everything together. Store-bought works great when you’re short on time, but a homemade version can add that extra something. I often use the base from my chicken cheese and zucchini muffin recipe when I have time to make crust from scratch.

The broccoli should be chopped small so it softens during cooking. Any mushrooms will do. Cremini or button mushrooms are ideal. Just avoid anything too watery, like portobellos, unless you cook out all the moisture.

Step-by-step instructions for the perfect quiche

Start by preheating your oven to 350°F. In a medium skillet, heat the olive oil over low to medium heat. Add the minced garlic and cook for about one minute, just until it turns golden and fragrant.

Add the broccoli and mushrooms to the skillet. Cook for about five to eight minutes until both are tender. Drain off any extra moisture. This step helps keep the crust from getting soggy.

While that cools slightly, place the pie crust in your pie dish. Spread the broccoli mushroom mixture evenly across the bottom.

In a small bowl, whisk one egg with one tablespoon of milk. Brush this mixture over the edge of the crust to help it brown during baking.

In the same bowl, add the three remaining eggs. Whisk well. Stir in the cup of milk and the shredded cheddar cheese. Pour this egg and cheese mixture over the vegetables in the crust.

Sprinkle parmesan on top.

Bake for 45 minutes. The crust should be golden, and the center should feel set if you give the dish a gentle shake.

Let the quiche cool for at least ten minutes before slicing. This makes it easier to cut and helps the filling stay together.

Pair it with a crisp salad like my cucumber ranch crack salad or serve it alongside fruit and coffee for a cozy brunch.

Customizing Broccoli Mushroom Quiche to Fit Your Style

Ingredient swaps and tasty additions

This broccoli mushroom quiche is delicious as-is, but it’s also one of those recipes you can change based on what’s in your kitchen. If you’re out of cheddar, try Swiss, mozzarella, or even feta for a saltier bite. You can also mix cheeses to layer in more flavor. Just keep the total to about one and a third cups for the right texture.

Broccoli and mushrooms are a great base, but you can easily switch things up. No broccoli? Use chopped spinach, kale, or even zucchini. Just cook them down and drain any moisture before adding to the crust. Want more depth? Sauté some onions with your garlic, or toss in chopped sun-dried tomatoes.

You can also add a bit of protein if you’re not keeping it vegetarian. Crumbled cooked sausage or diced ham mix in well without changing the bake time. I sometimes take the filling base from my chicken rice a roni casserole and fold in cooked mushrooms and eggs for something heartier.

This is the kind of meal you can adapt based on season, mood, or what needs to be used up in the fridge. It’s also a great way to reduce food waste while still making something that feels thoughtful and homemade.

Storage, reheating, and freezer tips

Once baked, let the quiche cool completely before storing. You can cover the whole dish with foil or transfer slices into containers. Keep it in the fridge for up to four days. When you’re ready to eat, reheat a slice in the oven at 325°F for about ten minutes to get the crust crisp again.

You can also freeze it. Either wrap the whole baked quiche in layers of plastic and foil or freeze individual slices. Reheat straight from frozen in a 350°F oven for about twenty minutes. It’s a good idea to make two and freeze one for busy weeks.

For another comforting bake that keeps well, try my cheesy beef fajita dirty rice casserole. Like this quiche, it holds up beautifully in the fridge and tastes even better the next day.

Avoiding Common Mistakes and Getting the Perfect Broccoli Mushroom Quiche Every Time

Don’t skip these simple tips

Even though broccoli mushroom quiche is simple to make, a few key mistakes can affect the texture or flavor. Here’s what to watch for.

The first is skipping the sauté step. If you add raw broccoli or mushrooms straight to the crust, they’ll release moisture as they bake. This causes a soggy bottom and watery filling. Always cook and drain your vegetables before adding them.

Second, make sure to let the quiche cool slightly before slicing. If you cut it straight from the oven, the filling may fall apart. Waiting ten minutes helps it set properly, so each slice holds its shape.

Third, don’t overbake. The filling should be set but still slightly soft in the center. It will finish firming up as it cools. If the top starts to brown too quickly, you can loosely tent foil over the dish during the last ten minutes.

How to get a tender crust and creamy center

If you’re using a store-bought crust, let it come to room temperature before filling. This prevents cracking. For homemade dough, blind baking is optional but helpful if you prefer a firmer crust.

Use whole milk or a mix of milk and half-and-half for the custard. Avoid skim milk, which makes the filling watery. Also, whisk your eggs and milk until smooth. This creates a light, creamy texture instead of a dense bite.

For extra flavor, add fresh herbs. Chopped parsley, thyme, or a little dill works beautifully. You can stir herbs into the egg mixture or sprinkle them on top with the cheese before baking.

This dish is easy to get right with just a bit of care. If you love cozy meals that offer flexibility and flavor, you might also enjoy my loaded Greek fries recipe, which turns pantry staples into something memorable.

FAQ

How do I keep the crust from getting soggy?

To avoid a soggy crust, always cook and drain your vegetables before adding them to the pie shell. You can also brush the crust with an egg wash before adding the filling. This creates a barrier that helps seal the crust and prevents excess moisture from soaking in.

What other cheeses work well in this recipe?

Sharp cheddar and parmesan add bold flavor, but Swiss, Gruyère, mozzarella, or feta also work well. For a stronger taste, try a mix of cheeses. Just keep the total amount around 1⅓ cups so the filling stays balanced.

Why This Broccoli Mushroom Quiche Just Works

This quiche isn’t fancy or complicated, but it delivers every single time. It’s the kind of recipe that makes you feel like you’ve got things under control, even on busy days. The balance of savory mushrooms, fresh broccoli, and creamy eggs in a buttery crust just works. It’s filling without being heavy and flexible enough to fit whatever’s in your fridge.

Whether you’re making it ahead or serving it warm out of the oven, it’s a meal that feels like a little win. And honestly, those are my favorite kind.