Spaghetti Squash Crustless Quiche
Spaghetti Squash Crustless Quiche is a warm, savory, and deeply comforting dish made with roasted spaghetti squash, crispy bacon, mushrooms, leeks, cheddar cheese, eggs, cream, and a gentle touch of nutmeg.
This recipe is rich and satisfying without needing a pastry crust. The roasted spaghetti squash creates a tender, naturally sweet base, while the bacon adds smoky flavor, the mushrooms bring earthy depth, and the leeks give the quiche a soft, delicate onion-like sweetness.
It is perfect for brunch, lunch, dinner, or meal prep. Every slice feels creamy, hearty, and nourishing, with a golden top and a soft, flavorful center.
Why People Will Love Spaghetti Squash Crustless Quiche Recipe
It is rich, savory, warm, and comforting.
It has all the flavor of a quiche without needing a crust.
Roasted spaghetti squash adds natural sweetness and tender texture.
Bacon gives the dish smoky, salty depth.
Mushrooms add earthy flavor and a satisfying bite.
Leeks bring gentle sweetness and elegance.
Cheddar cheese melts into the egg mixture beautifully.
Heavy cream makes the filling rich and smooth.
Nutmeg adds a subtle warm background flavor.
It is perfect for brunch, lunch, dinner, or meal prep.
It can be served warm, room temperature, or reheated.
It feels hearty without being overly heavy.
Key Ingredients
Spaghetti Squash:
Spaghetti squash is the base of this crustless quiche. Once roasted, its tender strands add texture, lightness, and a mild natural sweetness.
Mushrooms:
Mushrooms bring earthy depth and a savory flavor that pairs beautifully with eggs, cream, bacon, and cheese.
Leek:
Leek adds a soft, delicate onion flavor. It becomes sweet and tender when cooked, giving the quiche a more elegant taste.
Bacon:
Bacon adds smoky richness and crispy texture. It gives the quiche a deeper, more savory flavor.
Cheddar Cheese:
Cheddar melts into the egg mixture and adds a bold, creamy, slightly sharp flavor.
Heavy Cream:
Heavy cream gives the quiche a rich, custardy texture. It makes every slice smooth and satisfying.
Eggs:
Eggs hold the quiche together and create the soft, set structure.
Nutmeg:
Nutmeg adds a subtle warmth that works especially well with cream, eggs, cheese, and leeks.
Salt and Pepper:
Salt enhances the flavors, while black pepper adds gentle warmth and balance.
Expert Tips
Roast the spaghetti squash until fully tender before adding it to the filling.
Let the squash cool slightly before scooping out the strands.
Drain or pat the squash strands if they seem too watery.
Cook the bacon until crispy for the best flavor and texture.
Sauté the mushrooms until their moisture cooks off.
Cook the leeks gently so they become soft, not browned or bitter.
Reserve a few bacon and mushroom pieces for topping to make the quiche look more beautiful.
Beat the eggs and cream well so the filling bakes evenly.
Season carefully because bacon and cheddar already add salt.
Bake until the center is set and the top is golden.
Let the quiche rest before slicing so it holds together better.
For a fresher finish, garnish with parsley, chives, or extra black pepper.
Spaghetti Squash Crustless Quiche
Ingredients
1 Small Spaghetti Squash
200g/7oz Sliced Mushrooms
1 Large Leek, sliced
150g/5.3oz Bacon
100g/3.5oz Shredded Cheddar Cheese
1 Cup (250ml) Double Cream/Heavy Cream
8 Eggs
1/4 Tsp Nutmeg
Salt & Pepper
Instructions
Preheat the Oven:
Set the oven to 200C/400F.
Prepare the Spaghetti Squash:
Slice the spaghetti squash in half lengthwise and remove the seeds and stringy strands inside.
Brush the cut sides with olive oil and season with salt and pepper.
Place the squash, cut side down, on a baking tray lined with parchment paper. Roast for about 45 minutes or until the squash is tender.
Let the squash cool until it’s easy to handle, then scoop out the flesh and place it in a large bowl.
Prepare the Filling:
Lower the oven temperature to 180C/350F.
Butter grease a 28cm/11-inch baking dish.
Cook the bacon until crispy, then set it aside.
In the same pan, sauté the mushrooms until they’re tender, then remove them and set them aside.
Add a little butter to the pan and cook the leeks until soft. Remove and set them aside.
Combine the bacon, mushrooms, and leeks with the spaghetti squash in the large bowl, mixing well. (Reserve a few bacon and mushroom pieces for topping.)
Prepare the Egg Mixture:
Beat the eggs with the cream and nutmeg in a separate bowl.
Add the shredded cheddar cheese to the egg mixture and season with salt and pepper.
Pour the egg mixture over the squash and veggie filling. Use a fork to gently mix and ensure the eggs are evenly distributed.
Assemble and Bake:
Spoon the filling into the prepared baking dish.
Top with the reserved bacon and mushrooms.
Sprinkle some freshly ground pepper on top.
Bake in the oven for about 45 to 60 minutes or until the top is golden brown.
Enjoy your delicious Spaghetti Squash Crustless Quiche!
Important Notes When Making Spaghetti Squash Crustless Quiche
This is a crustless quiche, so the texture will be softer than a pastry-crust quiche.
Spaghetti squash can release moisture, so avoid adding it while too wet.
The baking time can vary depending on the depth of the baking dish.
The center should be set before removing the quiche from the oven.
The quiche may puff slightly while baking and settle as it cools.
Do not overbake, or the eggs can become dry.
Nutmeg should be used lightly because it has a strong flavor.
Bacon can be replaced with ham, sausage, or omitted for a vegetarian version.
Leftovers should be stored in the refrigerator.
Reheat gently so the eggs stay soft and creamy.
How to Enjoy Spaghetti Squash Crustless Quiche After Cooking
After the Spaghetti Squash Crustless Quiche comes out of the oven, let it rest for about 10 to 15 minutes before slicing. This helps the eggs finish setting and makes each slice cleaner and easier to serve.
Cut the quiche into wedges or squares, depending on your baking dish. Each serving should have tender spaghetti squash, smoky bacon, earthy mushrooms, soft leeks, melted cheddar, and a creamy egg base.
For breakfast or brunch, serve it with fresh fruit, breakfast potatoes, toast, avocado slices, or a simple green salad. The freshness of fruit or salad balances the richness of the cream, cheese, and bacon.
For lunch or dinner, pair it with roasted vegetables, tomato salad, cucumber salad, soup, or crusty bread. It also works beautifully as a light main dish with a bright side salad.
This quiche can be enjoyed warm, room temperature, or gently reheated. Warm slices taste soft and creamy, while chilled leftovers become firmer and easier to pack for meal prep.
For extra flavor, top each slice with chopped parsley, chives, sour cream, hot sauce, or freshly cracked black pepper.
Nutrition Information
Approximate nutrition per serving, based on 8 servings:
Calories: 285 kcal | Total Fat: 22 g | Saturated Fat: 11 g | Monounsaturated Fat: 7 g | Polyunsaturated Fat: 2 g | Cholesterol: 235 mg | Sodium: 430–780 mg depending on bacon, cheese, and added salt | Total Carbohydrates: 8 g | Dietary Fiber: 1.8 g | Sugars: 3 g | Protein: 14 g
Additional estimate:
Calcium: 190–280 mg | Potassium: 300–480 mg | Iron: 1.5–2.5 mg | Vitamin A: 850–1,400 IU | Vitamin C: 8–16 mg
Frequently Asked Questions:
Can I use a different type of cheese?
Yes! You can use any cheese that melts well, like mozzarella, Gruyère, or feta.
Just keep in mind that different cheeses will affect the flavor and texture of the quiche.
Can I make this ahead of time?
Absolutely! You can prepare the quiche up to the point of baking and store it in the refrigerator overnight.
Just bake it when you’re ready, or you can reheat it in the oven at 350°F for about 20 minutes.
Can I add other vegetables to the filling?
Yes! Feel free to add other veggies such as spinach, bell peppers, or zucchini.
Just make sure to cook them first so they release their moisture and don’t make the quiche soggy.
How do I store leftovers?
Leftovers can be stored in an airtight container in the refrigerator for up to 3-4 days.
You can also freeze the quiche for longer storage (up to 3 months).
Reheat it in the oven for best results.
Can I make this recipe dairy-free?
Yes, you can make it dairy-free by swapping out the cream for a non-dairy alternative like coconut cream or almond milk, and using a dairy-free cheese substitute.
Just make sure the other ingredients you use align with your dietary preferences.
How do I know when the spaghetti squash is cooked enough?
The spaghetti squash is done when the skin is tender to the touch, and you can easily scrape the flesh with a fork to create “noodles.”
The flesh should be soft and separate into strands.
It usually takes about 45 minutes at 400°F, but check it halfway through to ensure it’s cooking evenly.
Can I use a different kind of squash instead of spaghetti squash?
While spaghetti squash provides a unique texture, you can substitute with other squash varieties like butternut or acorn squash.
However, these will yield a different texture and consistency.
You may need to adjust cooking times accordingly.
Why do I need to cool the spaghetti squash before scooping out the flesh?
Letting the spaghetti squash cool for a few minutes makes it easier to handle and scoop out the flesh.
If it’s too hot, you risk burning your hands and also it might cause the squash to release too much moisture into the filling.
Can I make this recipe without bacon?
Yes! You can omit the bacon for a vegetarian option or substitute with a plant-based bacon alternative.
You can also add more veggies to compensate for the flavor depth that bacon adds.
Can I make this recipe with pre-cooked spaghetti squash?
Yes, you can use pre-cooked spaghetti squash if you have leftovers or want to save time.
Just be sure to drain any excess moisture from the squash before adding it to the quiche mixture, as too much moisture can affect the texture of the quiche.