“Did you ever have one of those weeks where life gets overwhelming, and you just want a nutritious meal that’s both quick and comforting?” If you’re like me, busy days can lead to reaching for takeout, but I’ve discovered a solution: the Crustless Tuna Quiche. This delicious dish fits seamlessly into a 7-Day Mediterranean Diet Meal Plan, making it a perfect option for breakfasts, lunches, or quick dinners. Trust me, you’ll love how simple it is to whip up and can enjoy it hot or cold. Just imagine the great taste of the Mediterranean while savoring the balance of proteins and greens! Plus, it’s gluten-free, so you can serve it to friends with dietary restrictions without worry. Not only does it pack a wholesome punch, but it’s also an excellent way to clean out the fridge before grocery day. Are you ready to elevate your meal prep game with this delightful recipe? Let’s dive in!

Why is Crustless Tuna Quiche a Must-Try?
Versatile Delight: This dish shines as a breakfast, lunch, or dinner option, making it perfect for any meal.
Easy Preparation: With minimal prep time, you can whip it up in no time, perfect for busy weeks when you crave homemade goodness.
Flavorful and Nutritious: Infused with fresh veggies and protein-rich tuna, it promotes a balanced Mediterranean diet while tantalizing your taste buds.
Gluten-Free Goodness: Embracing a gluten-free lifestyle? This quiche fits right in, appealing to friends with dietary restrictions!
Waste Not: Ideal for using leftover ingredients, you can mix and match whatever veggies you have on hand—an excellent way to clean out the fridge before your next grocery trip.
Prepare Ahead: Make several servings and enjoy them throughout the week, saving precious time without sacrificing taste. For more quick meal ideas, check out this Tuna Steaks Garlic recipe!
Crustless Tuna Quiche Ingredients
For the Quiche Base
- Eggs – The foundation of your quiche, packed with protein and essential nutrients.
- Milk – Adds creaminess; you can substitute with almond or soy milk for a dairy-free option.
- Canned Tuna – Rich in Omega-3 fatty acids; choose low-sodium versions for a healthier option.
- Fresh Spinach – Offers a burst of color and nutrients; feel free to swap with kale or chard.
- Chopped Onions – Adds depth of flavor; shallots or leeks work beautifully as alternatives.
For the Seasoning
- Salt – Enhances all the flavors; adjust to your taste or use a salt-free seasoning blend.
- Black Pepper – Adds warmth; customize with paprika or cayenne for a bit of heat.
- Herbs (like Basil or Oregano) – Infuse Mediterranean goodness; dried herbs can substitute fresh if unavailable.
Optional Add-ins
- Bell Peppers – Colorful and crunchy, these can be replaced with any seasonal veggies you love.
- Cheese (Feta or Parmesan) – Add a delicious tang; omit for a dairy-free version or substitute with nutritional yeast.
This Crustless Tuna Quiche is not just tasty and hearty but also perfect for meal prepping, ensuring that you enjoy satisfying meals throughout the week!
Step‑by‑Step Instructions for Crustless Tuna Quiche
Step 1: Preheat Your Oven
Begin by preheating your oven to 350°F (175°C). This ensures that when you’re ready to bake the Crustless Tuna Quiche, the oven is at the perfect temperature. While it heats up, gather all your ingredients on the counter for easy access, including a mixing bowl and a whisk for blending.
Step 2: Whisk the Base Ingredients
In a large mixing bowl, crack 5 large eggs and add 1 cup of milk. Whisk them together until the mixture is smooth and frothy, which should take about 1-2 minutes. This step is crucial as it forms the rich base of your quiche. Aim for a lovely, light color to indicate it’s well-mixed before moving to the next step.
Step 3: Combine the Tuna and Vegetables
Now, drain and add 1 can of tuna to the egg mixture, breaking it apart with a fork for even distribution. Toss in 1 cup of fresh spinach and half a cup of chopped onions. If you like a bit more crunch, consider adding chopped bell peppers. Stir it all until everything is well combined, ensuring the tuna and veggies are evenly coated with the egg mixture.
Step 4: Season the Mixture
Sprinkle in your desired amount of salt, black pepper, and herbs—around 1 teaspoon of each herb is a good start. Mix it again, ensuring the seasonings are adequately spread throughout the Crustless Tuna Quiche filling. Take a moment to taste a bit of the mixture to see if it needs any adjustments in flavor.
Step 5: Prepare the Baking Dish
Grease a 9-inch pie dish or a similar-sized oven-safe skillet with a bit of olive oil or non-stick spray to prevent sticking. This will contribute to a beautiful golden crust as it bakes, allowing the quiche to lift out easily afterward. Spread the mixture into the lightly greased dish, smoothing it out with a spatula for even cooking.
Step 6: Bake to Perfection
Place the quiche in your preheated oven and bake for 35-40 minutes. Keep an eye on it; you’ll know it’s ready when the edges turn golden brown and the center is set. You can test doneness by inserting a knife into the center; it should come out clean. The aroma wafting from your oven will make it hard to resist!
Step 7: Cool and Serve
Once it’s baked to perfection, remove the Crustless Tuna Quiche from the oven and let it cool for about 10-15 minutes. This cooling period helps the quiche set further and cools it to a manageable temperature for serving. Slice into wedges and enjoy warm or chilled, making it perfect for any meal!

How to Store and Freeze Crustless Tuna Quiche
Fridge: Store leftovers in an airtight container for up to 3 days to maintain freshness and flavor.
Freezer: Wrap portions tightly in plastic wrap and place in a freezer-safe container for up to 2 months. Thaw overnight in the fridge before reheating.
Reheating: To reheat, place slices in a preheated 350°F (175°C) oven for about 10-15 minutes, or until warmed through. Enjoy the delightful taste of your Crustless Tuna Quiche at any meal!
Room Temperature: It’s best to avoid leaving the quiche out for more than 2 hours to ensure food safety.
Crustless Tuna Quiche Variations & Substitutions
Unlock a world of flavor by customizing your Crustless Tuna Quiche with these delightful twists!
- Dairy-Free: Substitute regular milk with almond or soy milk to fit a dairy-free lifestyle.
- Vegetarian: Swap canned tuna with cooked lentils or chickpeas to create a hearty, plant-based version.
- Herb Infusion: Experiment with fresh herbs like dill or parsley for a burst of flavor.
- Add More Veggies: Boost nutrition by adding zucchini or artichoke hearts to the mixture, enhancing both taste and texture.
- Spicy Kick: Stir in some chopped jalapeños or crushed red pepper flakes for a touch of heat, making every bite exciting.
- Cheesy Goodness: For those who adore cheese, add feta or goat cheese for a tangy, creamy element, or try nutritional yeast for a vegan option.
- Crusty Base: For a special occasion, pour the mixture into a pre-baked gluten-free crust for a twist on traditional quiche.
- Breakfast Power: Mix in cooked and crumbled turkey sausage or bacon for a protein-packed breakfast dish that’ll impress everyone.
Feel free to explore these options and combine them as per your fancy! And if you’re looking for more seafood inspiration, don’t forget to check out the Tuna Steaks Garlic recipe! Each variation is a delicious step towards culinary adventure. Enjoy!
What to Serve with Crustless Tuna Quiche?
Elevate your dining experience by pairing this delightful dish with complementary flavors and textures that truly highlight its Mediterranean essence.
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Arugula Salad: Fresh and peppery, this salad adds a crisp contrast to the creamy quiche, enhancing its Mediterranean vibe. Toss it with a simple lemon vinaigrette for extra zest.
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Roasted Cherry Tomatoes: Their burst of sweetness beautifully balances the savory flavors of the quiche. A great side that provides a pop of vibrant color to your plate.
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Grilled Asparagus: Tender and slightly charred, this veggie adds a lovely crunch and brightness that complements the richness of the tuna filling. Plus, it’s easy to prepare!
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Zucchini Noodles: Light and refreshing, these noodles can soak up any extra sauces you choose to pair with the quiche, maintaining a healthy, low-carb option.
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Herbed Yogurt Dip: A creamy dip with fresh herbs can enhance the quiche experience, providing a cooling effect that contrasts with the warm dish. Serve it as a side for dipping!
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Sliced Avocado: Creamy and rich, avocado adds healthy fats and pairs wonderfully with the quiche, making each bite memorable and satisfying.
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Pineapple-Mint Salsa: A refreshing and tropical twist that brings a sweet, tangy flavor, this vibrant salsa can be a delightful contrast to the savory quiche.
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White Wine: A chilled glass of crisp Pinot Grigio or a light Sauvignon Blanc enhances the meal, emphasizing the fresh flavors of the tuna and veggies.
These simple yet delicious accompaniments will elevate your Crustless Tuna Quiche to new heights, creating a balanced and satisfying meal that everyone will love!
Make Ahead Options
These Crustless Tuna Quiches are a game changer for meal prep enthusiasts! You can prepare the egg base (whisked eggs and milk with seasonings) up to 24 hours in advance and store it in the refrigerator, ensuring it stays fresh. Additionally, you can chop your veggies—such as spinach and onions—up to 3 days ahead of time, placing them in airtight containers to maintain their crispness. When you’re ready to bake, simply combine the base with the prepped tuna and veggies, pour the mixture into a greased baking dish, and bake as instructed. This way, you’ll enjoy a delicious and nourishing meal, just as satisfying as if it were freshly made, saving you valuable time during those busy weekdays!
Tips for the Best Crustless Tuna Quiche
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Use Fresh Ingredients: Elevate flavor by opting for fresh vegetables instead of frozen; this makes a noticeable difference in texture and taste.
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Mind the Seasoning: Don’t skimp on herbs and spices; a well-seasoned Crustless Tuna Quiche maximizes its Mediterranean appeal.
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Adjust Cooking Time: Keep an eye on the quiche during baking; ovens vary, and it may need more or less than the suggested time.
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Experiment with Add-ins: Feel free to mix and match veggies or proteins based on what you have at home; creativity helps reduce food waste while keeping meals interesting!
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Cool Before Serving: Allow the quiche to rest after baking; this helps it set better, making slicing easier and preventing a soggy center.
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Store Properly: Leftovers can be kept in an airtight container in the fridge for up to three days—great for quick meals throughout the week!

Crustless Tuna Quiche Recipe FAQs
What kind of tuna should I use for the quiche?
I recommend using canned tuna packed in water for a healthier option. Look for low-sodium varieties to keep it heart-friendly. If you prefer fresh tuna, you can sear and flake it before adding it to the quiche mixture, which will enhance the flavor.
How do I store leftovers of the Crustless Tuna Quiche?
Absolutely! Store any leftovers in an airtight container in the refrigerator for up to 3 days. Make sure to let it cool completely before sealing to avoid moisture buildup. You can also slice it for easy grab-and-go meals throughout the week!
Can I freeze Crustless Tuna Quiche?
Yes, you can! To freeze, wrap individual portions in plastic wrap and place them in a freezer-safe container. They can be frozen for up to 2 months. When you’re ready to enjoy, thaw overnight in the fridge and reheat in a preheated oven at 350°F (175°C) for about 10-15 minutes until warmed through.
What if my quiche doesn’t set properly?
If your Crustless Tuna Quiche turns out soggy, it might need a little more baking time to allow it to set. Make sure to allow it to cool for about 10-15 minutes after baking; this helps firm it up. If you prefer a firmer quiche in the future, consider whipping the eggs a bit longer or reducing the amount of milk slightly.
Is this recipe safe for gluten-free diets?
Absolutely! The Crustless Tuna Quiche is naturally gluten-free since it doesn’t have any crust. Just double-check any add-ins like cheese, as some processed versions might have gluten-based ingredients. Feel free to swap in gluten-free options if you’re adding any pre-made ingredients!

Healthy Crustless Tuna Quiche for Easy Weekday Brunch
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C). Prepare all ingredients for easy access.
- In a large mixing bowl, whisk together the eggs and milk until smooth and frothy.
- Add the drained tuna, spinach, and chopped onions to the egg mixture, and stir to combine.
- Sprinkle in salt, black pepper, and herbs, and mix to ensure seasonings are even.
- Grease a 9-inch pie dish with oil and spread the mixture evenly in the dish.
- Bake in the preheated oven for 35-40 minutes until edges are golden and center is set.
- Let the quiche cool for about 10-15 minutes before slicing and serving.

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