Quiche Without Dough with Tuna & Mushrooms
If you love the comforting richness of traditional quiche but want something lighter, faster, and naturally gluten-free, this Quiche Without Dough with Tuna & Mushrooms is about to become your new favorite. Also known as a crustless quiche, this version skips the pastry shell while keeping all the creamy, savory goodness inside. It’s perfect for busy weeknights, meal prep, brunch spreads, or even a protein-packed lunch.
The combination of tender tuna, earthy mushrooms, fluffy eggs, and melted cheese creates a satisfying dish that feels indulgent—but is surprisingly simple and wholesome.
Why You’ll Love This Recipe
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No crust needed – Saves time and reduces carbs
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High in protein – Thanks to eggs and tuna
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Budget-friendly – Uses pantry staples
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Gluten-free by nature
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Great for meal prep – Keeps well in the fridge
Whether you’re cooking for family or preparing meals ahead for the week, this crustless tuna and mushroom quiche delivers flavor without fuss.
Ingredients
Serves 6–8
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1 tablespoon olive oil
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1 small onion, finely chopped
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250 g (8 oz) mushrooms, sliced
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2 cans (about 300 g total) tuna in water or oil, drained
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4 large eggs
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1 cup (240 ml) milk (whole or semi-skimmed)
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½ cup (120 ml) heavy cream (optional, for extra creaminess)
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1 cup (100 g) shredded cheese (cheddar, mozzarella, or Swiss)
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2 tablespoons chopped fresh parsley (optional)
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Salt and black pepper to taste
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½ teaspoon dried thyme (optional)
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Butter or oil for greasing the baking dish
Step-by-Step Instructions
1. Preheat and Prepare
Preheat your oven to 180°C (350°F). Lightly grease a 9-inch (23 cm) pie dish or baking dish with butter or oil.
2. Sauté the Vegetables
Heat olive oil in a skillet over medium heat. Add chopped onion and cook for 2–3 minutes until translucent. Add sliced mushrooms and sauté for 5–7 minutes until they release their moisture and become golden. Season lightly with salt, pepper, and thyme.
Remove from heat and let cool slightly.
3. Prepare the Egg Mixture
In a large bowl, whisk together the eggs, milk, and cream (if using). Add a pinch of salt and black pepper. Stir in half of the shredded cheese.
4. Assemble the Quiche
Spread the sautéed mushrooms and onions evenly across the bottom of the prepared baking dish. Flake the drained tuna evenly over the vegetables.
Pour the egg mixture on top, ensuring everything is evenly distributed. Sprinkle the remaining cheese over the surface. Add chopped parsley if desired.
5. Bake
Place the dish in the preheated oven and bake for 30–40 minutes, or until the center is set and the top is lightly golden. A knife inserted in the center should come out clean.
6. Rest Before Serving
Allow the quiche to cool for at least 10 minutes before slicing. This helps it firm up and makes cutting easier.
Tips for Perfect Crustless Quiche
1. Remove excess moisture from mushrooms.
Mushrooms release water while cooking. Make sure most of it evaporates before adding them to the dish to avoid a watery quiche.
2. Drain tuna thoroughly.
Press out excess liquid to prevent sogginess.
3. Don’t overbake.
Overcooking can make the texture rubbery. The center should be just set with a slight jiggle.
4. Let it rest.
Cooling allows the proteins to firm up, giving you clean slices.
Flavor Variations
This recipe is highly customizable. Try these delicious variations:
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Add chopped spinach for extra nutrients
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Stir in diced bell peppers for color and sweetness
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Use feta cheese for a Mediterranean twist
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Add a pinch of paprika or chili flakes for gentle heat
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Mix in grated zucchini (squeeze out moisture first)
You can also experiment with herbs like basil, chives, or dill to complement the tuna beautifully.
Storage and Reheating
Refrigerator:
Store leftovers in an airtight container for up to 3–4 days.
Freezer:
Slice and freeze individual portions wrapped tightly. Freeze for up to 2 months.
Reheating:
Reheat in the oven at 160°C (320°F) for 10–15 minutes or microwave individual slices for 1–2 minutes.
This makes it perfect for meal prep lunches or quick dinners during busy weeks.
Nutritional Benefits
This crustless tuna and mushroom quiche is:
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High in protein
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Lower in carbohydrates compared to traditional quiche
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Rich in B vitamins from tuna and eggs
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A good source of selenium from mushrooms
Because it doesn’t include a pastry crust, it’s lighter but still incredibly satisfying.
Serving Suggestions
Serve warm or at room temperature with:
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A simple green salad with lemon vinaigrette
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Roasted vegetables
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Fresh tomato slices
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A light cucumber salad
For brunch, pair it with fresh fruit and crusty bread (for those who want extra carbs on the side).
Frequently Asked Questions
Can I make it dairy-free?
Yes. Replace milk and cream with unsweetened almond milk or oat milk, and use dairy-free cheese.
Can I use fresh tuna?
Canned tuna is recommended for convenience, but cooked fresh tuna can also be flaked and used.
Why is my quiche watery?
Most likely from undercooked mushrooms or poorly drained tuna. Always cook off excess moisture.
Can I double the recipe?
Absolutely. Use a larger baking dish and increase baking time slightly.
Final Thoughts
Quiche Without Dough with Tuna & Mushrooms is the perfect blend of simplicity, nutrition, and flavor. It’s ideal for anyone who wants a lighter alternative to traditional quiche without sacrificing taste. Whether you’re serving it for brunch, packing it for lunch, or enjoying a cozy dinner at home, this crustless version proves that sometimes less really is more.