Asparagus-Mushroom-Sausage-Spinach Quiche with Homemade Pie Crust

Asparagus-Mushroom-Sausage-Spinach Quiche with Homemade Pie Crust

A Hearty, Savory Quiche Perfect for Any Meal

There's something wonderfully satisfying about a homemade quiche - the flaky, buttery crust giving way to a rich, custardy filling packed with savory sausage, earthy mushrooms, fresh asparagus, and tender spinach. This Asparagus-Mushroom-Sausage-Spinach Quiche is a complete meal in one beautiful dish, perfect for brunch, lunch, or a light dinner.

While you can certainly use a store-bought crust to save time, making your own pie crust elevates this dish to something truly special. We've included our Ultimate Pie Crust recipe below - it's easier than you think, and the results are absolutely worth it!Asparagus-Mushroom-Sausage-Spinach Quiche

 

Download Printable Recipe Card

Also download your BONUS printable pie crust cheat sheet - a handy visual guide for perfect crusts every time!

Ultimate Pie Crust Recipe

A perfect pie crust is the foundation of any great quiche. This recipe gives you a flaky, tender crust that holds up beautifully to the rich custard filling. You can make it by hand or use a food processor - both methods work wonderfully!

Pie Crust Ingredients

  • 2 ½ cups (325g) all-purpose flour
  • ½ teaspoon salt
  • 1 cup (230g) cold unsalted butter, cut into cubes
  • 6-8 tablespoons ice water

Pie Crust Instructions

Method 1: Food Processor

  1. Mix flour & salt: Pulse 1 ½ cups flour + salt in food processor
  2. Add butter: Scatter cold butter cubes, pulse until paste forms (10-15 seconds)
  3. Add remaining flour: Pulse 4-5 times until crumbly
  4. Add water: Transfer to bowl, sprinkle 4 tbsp ice water, press together. Add more water if needed
  5. Shape & chill: Form ball, cut in half, flatten into disks. Wrap and chill 1 hour (or freeze up to 3 months)

Method 2: By Hand

  1. Mix flour & salt: Whisk together in a cold bowl
  2. Cut in butter: Use pastry cutter until coarse crumbs with pea-sized butter pieces
  3. Add remaining flour: Mix lightly
  4. Add water: Sprinkle ice water, press together gently
  5. Shape & chill: Same as above

Rolling Out: Let dough sit 5 minutes, roll into 12-inch circle on floured surface, place in pie dish, crimp edges, chill 30 minutes before baking.

Pro Tips for Perfect Crust: Keep everything cold (butter, water, even flour), don't overmix - visible butter chunks create flaky layers, chill before rolling for firm butter, and optionally swap 1-2 tbsp water for vodka for extra tenderness.

Download Printable Recipe Card

Quiche Ingredients

Crust: 1 pre-made or homemade (see recipe above) 9-inch pie crust

Protein: ⅓ to ½ lb ground sausage of your choice

Vegetables:

  • ½ lb asparagus (cut into 1-inch pieces)
  • Mushrooms (about 3 medium, chopped)
  • 2-3 cups fresh baby spinach
  • ¼ medium onion, diced
  • 2 cloves garlic, minced

Custard:

  • 4-8 large eggs
  • ½ cup heavy cream
  • ½ cup milk

Cheese: 1 cup shredded Gruyère, cheddar, or Swiss (or any cheese of your choice except mozzarella)

Seasoning: Garlic powder, onion powder, salt, pepper, and sometimes Dijon mustard (if you do not have Dijon, use dry mustard)

Essential Tools

  • 9-inch Pie Dish or Quiche Pan
  • Food Processor or Pastry Cutter
  • Rolling Pin
  • Skillet
  • Mixing Bowl
  • Whisk
  • Dough Scraper

Instructions

Step 1: Prep Crust
Preheat oven to 375°F-400°F (190°C-200°C). Press the crust into a pie dish, dock with a fork, and pre-bake for 10-15 minutes.

Step 2: Cook Filling
In a skillet, brown the sausage, breaking it into small pieces. Add the onion and garlic, then after blanching add the asparagus and spinach, sautéing until tender and moisture has evaporated.

Step 3: Mix Custard
Whisk eggs, cream, salt, pepper, and optional seasonings (like Dijon or onion powder) in a bowl.

Step 4: Assemble & Bake
Layer the sausage-vegetable mixture and cheese into the crust. Pour the egg mixture on top. Bake for 35-45 minutes until the center is set.

Step 5: Rest
Allow the quiche to cool for at least 10-15 minutes before slicing.

Tips for Success

Avoid Soggy Bottoms: Par-bake the crust and ensure all vegetables are well-drained after sautéing. When par-baking crust, make sure if using a quiche pan that you support the sides of the crust so they do not collapse.

Asparagus Prep: Blanch the asparagus for 1 minute in boiling water before sautéing to ensure they retain their bright color.

Customize Your Quiche: This recipe is wonderfully flexible - swap the sausage for bacon or ham, use different vegetables like bell peppers or zucchini, or try different cheese combinations. The custard base stays the same, so feel free to make it your own!

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