Image relevance check
The hero image is reviewed against the dish title and alt text: Mushroom and spinach quiche with a sliced wedge, tomatoes, and herbs on a white background. The page also includes 3 visual checkpoints.

A buttery, flaky crust filled with a savory mushroom and spinach custard
Prep Time
20 min
Cook Time
45 min
Total Time
1 hr 5 min
Servings
8
1 quiche (9-inch)
Difficulty
Medium
Cost
Moderate
$$
A buttery, flaky crust filled with a savory mushroom and spinach custard
Sautéed mushrooms and spinach baked in a silky egg custard with gruyere cheese inside a golden, flaky pie crust. An elegant brunch centerpiece or a light dinner with salad.
20m
Prep Time
45m
Cook Time
65m
Total Time
8
Servings
Medium
Difficulty
Moderate $$
Cost
Recipe by Mei Tanaka
Reviewed by RecipePool Baking & Breakfast Desk
Editorially reviewed for image relevance, instruction clarity, ingredient fit, visual checkpoints, and practical home-cooking usefulness.
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A well-made quiche is one of the most elegant things to come out of a home kitchen. Beneath its golden, flaky crust lies a silky custard enriched with cream and studded with earthy mushrooms, wilted spinach, and nutty gruyere cheese. It is sophisticated enough for a dinner party yet practical enough for a weekday meal.
The key to a great quiche is balance — enough eggs for structure, enough cream for richness, and enough filling to be interesting without making the custard heavy. This version gets that balance just right. Serve it warm from the oven or at room temperature with a lightly dressed green salad.
Recipe-specific review checks
Last reviewed May 20, 2026 by RecipePool Baking & Breakfast Desk. The checks below are tied to this recipe's image, cooking method, and reader support sections.
The hero image is reviewed against the dish title and alt text: Mushroom and spinach quiche with a sliced wedge, tomatoes, and herbs on a white background. The page also includes 3 visual checkpoints.
The instructions are supported by oven and baking cues for a main course and breakfast result, including timing, doneness, troubleshooting, and scaling guidance.
This page includes 3 tips, 2 recipe FAQs, and an editor note: For Mushroom and Spinach Quiche, check the thickest part for doneness, not just the edges.
Kitchen intelligence
Before you start
Start by having cremini mushrooms, sliced, unbaked 9-inch pie crust (store-bought or homemade), and fresh spinach, wilted and squeezed dry ready, then preheat oven to 375°F.
Timing read
Plan for 20 minutes prep and 45 minutes cooking. Midway check: Whisk together eggs, heavy cream, nutmeg, salt, and pepper.
Flavor logic
cremini mushrooms, sliced, unbaked 9-inch pie crust (store-bought or homemade), fresh spinach, wilted and squeezed dry, and eggs carry the main flavor and texture, so measure them before you adjust seasoning or heat.
Serving plan
For French and Main Course, the finish should match this final cue: Cool for at least 15 minutes before slicing.
Visual checkpoints

Mushroom and Spinach Quiche should look close to this before serving: clear color contrast, distinct texture, and a ready-to-eat finish.
Have 1 unbaked 9-inch pie crust (store-bought or homemade), 8 oz cremini mushrooms, sliced, 4 oz fresh spinach, wilted and squeezed dry measured and ready before heat goes on. Preheat oven to 375°F.
Cool for at least 15 minutes before slicing.
Ingredient notes
Shopping focus
Cremini mushrooms, unbaked 9-inch pie crust (store-bought or homemade), fresh spinach, and eggs carry most of the flavor. Spend attention there first.
Prep notes
Set up the ingredients in list order and keep time-sensitive items nearby.
Adjustment logic
If needed, use Swiss, cheddar, or fontina in place of Gruyere. Any good melting cheese works in quiche.
Optional items
Keep the main items intact; use garnish, heat, or acidity for small adjustments.
Shopping guide
Buy first
Fresh spinach, eggs, and heavy cream are the ingredients most likely to affect freshness and texture.
Package check
Cremini mushrooms, fresh spinach, and heavy cream may come in larger containers than needed; confirm amounts before buying backups.
Cost control
Use store brands, pantry staples, or simpler sides before changing the core ingredients.
Storage planning
Refrigerate covered for up to 4 days.
Useful Kitchen Picks
These are optional, recipe-relevant searches for tools or pantry staples that can make this specific recipe easier to repeat.
Helpful Pick
Vanilla Extract
Pantry upgrade
For baking and desserts, vanilla is often carrying more aroma than people expect. A better bottle gives the whole recipe a cleaner finish.
This is a small pantry move that usually makes baked goods taste more complete.
Vanilla extract is one of the easiest pantry upgrades to keep using.
Shop vanilla extract for this recipeAs an Amazon Associate I earn from qualifying purchases. Product links are included when they are directly relevant to the recipe.
Preheat oven to 375°F. Place pie crust in a 9-inch pie pan, prick the bottom with a fork, line with parchment and pie weights, and blind bake for 15 minutes. Remove weights and bake 5 more minutes.
Sauté mushrooms in butter over medium-high heat until golden, about 6 minutes. Add shallot and cook 1 minute. Season with salt and pepper.
Spread sautéed mushrooms and squeezed spinach evenly in the blind-baked crust. Sprinkle gruyere cheese over the top.
Whisk together eggs, heavy cream, nutmeg, salt, and pepper. Pour custard over the fillings.
Bake at 350°F for 35-40 minutes until the custard is set around the edges but still slightly jiggly in the center.
Cool for at least 15 minutes before slicing. The quiche will continue to set as it cools.
Technique notes
Key method moments pulled from the written steps.
Prep phase
3 steps
Sauté mushrooms in butter over medium-high heat until golden, about 6 minutes.
Final seasoning should happen after the main ingredients have cooked together, when the balance is easiest to judge.
Move on after this instruction is complete: sauté mushrooms in butter over medium-high heat until golden, about 6 minutes.
Finish phase
3 steps
Bake at 350°F for 35-40 minutes until the custard is set around the edges but still slightly jiggly in the center.
The oven stage sets texture and color; check browning and tenderness because pan size and ingredient thickness can shift the finish.
Move on after this instruction is complete: bake at 350°F for 35-40 minutes until the custard is set around the edges but still slightly jiggly in the center.
Doneness cues
Look for
Cool for at least 15 minutes before slicing.
Heat cue
If the surface is changing too fast before the center or sauce is ready, lower the heat and give the recipe time to catch up.
Timing cue
Use the 20 minutes prep window to get organized so the cooking stage can move without rushed substitutions.
Final adjustment
For Mushroom and Spinach Quiche, check the thickest part for doneness, not just the edges.
Troubleshooting
Texture check
Check this step before adding heat or liquid: Whisk together eggs, heavy cream, nutmeg, salt, and pepper.
Timing check
Mushroom and Spinach Quiche starts with about 20 minutes prep. Watch texture and seasoning at the midpoint.
Seasoning check
Before changing seasoning, check this tip: Blind baking is essential — do not skip it or the bottom crust will be soggy.
Leftover check
Reheat individual slices in a 325°F oven for 10-12 minutes.
Scaling guide
Half batch
For Mushroom and Spinach Quiche, halve the main ingredients evenly and season lightly until the final taste check.
Double batch
For Mushroom and Spinach Quiche, use a wider pan, larger pot, or second tray so the moderate ingredient list has room.
Timing changes
Cook time starts around 45 minutes; prep starts around 20 minutes.
Leftover math
Refrigerate covered for up to 4 days.
Make-ahead timeline
Earlier in the day
Start with this setup step: Preheat oven to 375°F.
Before serving
Plan around 20 minutes of prep and 45 minutes of cooking so the final step lands near serving time.
Leftover plan
Refrigerate covered for up to 4 days.
Reheat without damage
Reheat individual slices in a 325°F oven for 10-12 minutes.
Serve alongside a fresh baguette and salted butter
Pair with a crisp green salad with Dijon vinaigrette
Serve alongside fresh fruit and your favorite morning beverage
Pair with crispy bacon or sausage links for a hearty start
Meal fit
Meal role
Pair this main course and breakfast with sides that add contrast: crisp, fresh, acidic, or starchy as needed.
Best timing
Moderately involved timing for Mushroom and Spinach Quiche. Add a small buffer if serving guests.
Diet fit
Keep the sides aligned with vegetarian: vegetables, grains, sauces, or garnishes should follow the same constraint.
Occasion fit
Good for date night and brunch when sides can be handled while the main recipe cooks.
Any good melting cheese works in quiche.
Creates a different but equally delicious flaky shell.
A lighter option that still makes a good custard.
Blind baking is essential — do not skip it or the bottom crust will be soggy.
The quiche is done when the center jiggles slightly like Jell-O, not like liquid.
Let it rest at least 15 minutes before cutting for clean slices.
Refrigerate covered for up to 4 days. Freeze whole or sliced for up to 2 months.
Reheat individual slices in a 325°F oven for 10-12 minutes. Also delicious at room temperature.
For Mushroom and Spinach Quiche, check the thickest part for doneness, not just the edges. Rest briefly before serving if the recipe calls for it.
Per serving (1 slice) · 8 servings
A moderate-calorie serving · based on a 2,000 cal daily diet
Nutritional values are approximate and may vary based on specific ingredients and preparation methods.
Tell us what was unclear, what you changed, or what needs another look in Mushroom and Spinach Quiche.
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