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Easy & Healthy Crustless Zucchini Quiche: Your Go-To Recipe for Any Meal (21 Day Fix & Low Carb Friendly)

Searching for a versatile, delicious, and incredibly healthy dish that fits into almost any meal plan? Look no further than this amazing **Crustless Zucchini Quiche**! Whether you’re following the 21 Day Fix, a low-carb diet, or simply want a wholesome meal packed with fresh flavors, this recipe delivers. Imagine fluffy eggs, savory onions, two delightful kinds of cheese, and an abundance of fresh garden zucchini, all baked together into a golden, satisfying quiche.

This recipe is perfect for everything from a hearty breakfast or a leisurely weekend brunch to a quick, nutritious lunch or a light, satisfying dinner. And now, it’s even more flexible with **updated Instant Pot directions**!

Why Go Crustless? The Benefits of This Healthy Option

You might be wondering, “Why crustless?” While a traditional quiche crust can be undeniably delicious, opting for a crustless version offers several fantastic advantages:

• Lower in Carbohydrates: Without the pastry crust, this quiche naturally becomes a much lower-carb option, making it ideal for keto, Weight Watchers, and 21 Day Fix plans.
• Gluten-Free Friendly: For those with gluten sensitivities or who simply wish to avoid gluten, a crustless quiche is a perfect choice, requiring no special flour blends or pastry skills.
• Fewer Calories & Fat: Cutting out the butter-laden crust significantly reduces the overall calorie and fat content, contributing to a lighter, healthier meal.
• Easier and Faster Prep: Skipping the crust means no dough to mix, roll out, or blind bake. This saves a lot of time and effort, making it an excellent option for busy weeknights or meal prep.
• Focus on Fresh Flavors: Without the crust, the vibrant flavors of the zucchini, onion, and cheeses truly shine through, allowing the fresh ingredients to be the star of the show.

This particular recipe holds a special place in my heart, inspired by my grandma’s Italian Zucchini Pie – the one with the crescent roll crust that was pure heaven! My mom cleverly adapted it, drawing inspiration from a similar recipe she found on a ricotta container. And honestly? When she made it for us, I didn’t miss the crust one bit. It was *that* good. I wouldn’t lie about food!

Key Ingredients for the Perfect Zucchini Quiche

The beauty of this crustless zucchini quiche lies in its simple, fresh ingredients that come together to create a harmonious blend of flavors and textures. Here’s a closer look at what makes this recipe special:

Fresh Zucchini

Zucchini is the star of this dish, and its abundance in farm stands right now makes it a perfect seasonal choice! When selecting zucchini, look for firm, bright green squash without blemishes. For this recipe, thin slices work best to ensure even cooking and distribution throughout the quiche. You’ll need about 2 medium zucchinis to get 5 cups sliced. If your zucchini is particularly watery, a quick tip is to lightly salt the slices and let them sit for 10-15 minutes, then pat them dry with a paper towel before cooking. This helps prevent a watery quiche.

Looking for more ways to use that summer squash? Check out this awesome list of over 30 delicious zucchini recipes!

Creamy Ricotta & Melted Mozzarella

The combination of part-skim ricotta and shredded mozzarella is key to the quiche’s creamy texture and cheesy flavor. Ricotta adds a light, airy richness, while mozzarella provides that satisfying, gooey stretch when melted. Using part-skim options keeps the dish lighter without sacrificing taste. Feel free to experiment with other cheeses too – a sprinkle of Parmesan, a touch of crumbled feta, or even goat cheese could add exciting new dimensions.

Fluffy Eggs

Eggs form the essential base of any quiche, binding all the ingredients together into a custardy delight. For this recipe, three large eggs are perfectly balanced to give the quiche a light, fluffy texture. Whisk them well before incorporating the cheeses and vegetables to ensure a uniform consistency.

Aromatic Onion and Herbs

A single chopped onion sautéd until tender provides a foundational sweetness and aroma that complements the zucchini beautifully. Dried basil and oregano infuse the quiche with classic Italian-inspired flavors. You can adjust the amounts to your liking or even add other herbs like thyme or a pinch of red pepper flakes for a subtle kick. Freshly ground black pepper adds a final touch of spice.

The Right Oil

The recipe calls for butter-flavored olive oil, which adds a lovely richness reminiscent of butter without being actual butter. However, regular olive oil, a knob of butter, or ghee all work perfectly. Choose what fits your dietary preferences and flavor profile best.

Oven vs. Instant Pot: Choose Your Cooking Method

This recipe is wonderfully adaptable, offering two popular cooking methods. Both yield a delicious quiche, but they have distinct advantages.

Oven Baking (Traditional & Simple)

The oven method is classic and reliable. It provides even heat, resulting in a beautifully golden-brown top and a perfectly set interior. It’s excellent for those who prefer a more traditional bake or don’t own an Instant Pot.

• Pros: Familiar process, easy to monitor browning, no special accessories needed beyond a pie plate.
• Cons: Requires preheating, can heat up the kitchen, longer cook time than the active Instant Pot cycle.
• Tips: Ensure your oven is fully preheated. For that desirable crispy, golden-brown top, a quick broil for the last few minutes works wonders. Keep a close eye on it to prevent burning!

Instant Pot (Quick & Hands-Off)

Using the Instant Pot is a fantastic, hands-off way to cook this quiche. The pressure cooking creates a moist, tender result and can be quicker than oven baking once the pressure is reached. It’s perfect for summer to avoid heating up your kitchen, or when you need to free up oven space.

• Pros: Faster cooking time under pressure, keeps kitchen cool, results in a very moist quiche.
• Cons: Requires an Instant Pot safe dish (like a casserole dish or springform pan) and a trivet/sling, may not achieve a browned top without a separate broil step.
• Tips: A silicone sling (affiliate link) is incredibly helpful for safely lowering and lifting your casserole dish from the Instant Pot. Always do a natural release for part of the time to prevent cracking and ensure the quiche sets properly.

Serving Suggestions & Meal Prep Tips

This crustless zucchini quiche is incredibly versatile and can be enjoyed in many ways throughout the week:

• Breakfast or Brunch: Serve it alongside fresh fruit, a light yogurt parfait, or a simple green salad for a balanced and elegant morning meal.
• Lunch: It’s a fantastic make-ahead lunch! Pack a slice with some cherry tomatoes or a side of cottage cheese for a satisfying midday meal at work or home.
• Light Dinner: Pair it with a crisp mixed greens salad with a vinaigrette dressing, or a bowl of your favorite soup for a wholesome and light dinner.
• Snack: A cold slice straight from the fridge makes a surprisingly good and protein-packed snack.

Meal Prep & Storage

One of the best features of this quiche is how well it holds up for meal prepping. You can bake a whole quiche on Sunday and enjoy portions throughout the week!

• Storage: Allow the quiche to cool completely, then cover tightly with plastic wrap or transfer slices to an airtight container. Store in the refrigerator for up to 3-4 days.
• Freezing: For longer storage, slices of quiche can be frozen. Wrap individual slices tightly in plastic wrap, then aluminum foil, and place them in a freezer-safe bag. Freeze for up to 1-2 months. Thaw overnight in the refrigerator before reheating.
• Reheating: For best results, reheat individual slices in the microwave for 1-2 minutes until warmed through, or in a preheated oven (or toaster oven) at 300°F (150°C) for 10-15 minutes, or until heated through.

Dietary Adaptations: 21 Day Fix, WW & More!

This crustless zucchini quiche is a fantastic choice for a variety of healthy eating plans, making it easy to stick to your goals without sacrificing flavor.

• 21 Day Fix Friendly: This recipe is perfectly aligned with the 21 Day Fix program. Per serving, it counts as 1/2 Red (protein), 1 Green (vegetables), 1/2 Blue (healthy fats/cheese), and 1/2 TSP (oil). It’s a great way to get a good mix of containers in one delicious meal.
• Weight Watchers (WW) Approved: Calculated using low-fat ricotta, reduced-fat mozzarella, and olive oil, each serving comes in at a lean 4 WW points, making it an excellent choice for a filling meal on your Weight Watchers journey.
• Keto & Low-Carb: Naturally low in carbohydrates due to the absence of a crust, this quiche fits wonderfully into a ketogenic or general low-carb lifestyle. It’s packed with protein and healthy fats to keep you satiated.
• Naturally Gluten-Free: Since there’s no crust, this recipe is inherently gluten-free, making it accessible and safe for those with celiac disease or gluten sensitivity.

It’s a testament to how delicious and satisfying healthy eating can be!

Common Questions & Troubleshooting

Even simple recipes can sometimes present questions. Here are a few common inquiries and tips for ensuring your crustless zucchini quiche turns out perfect every time:

• Why is my quiche watery? This is usually due to excess moisture in the zucchini. Zucchini contains a lot of water. To avoid this, after slicing, you can sprinkle the zucchini with a little salt, let it sit for 10-15 minutes, then squeeze out the excess water with paper towels or a clean kitchen towel before sautéing. Ensure it’s thoroughly cooked down during the sauté step.
• How do I know when it’s done? For oven-baked quiche, the center should be mostly set, with only a slight jiggle. A knife inserted into the center should come out mostly clean. For Instant Pot, the specified cook time usually ensures doneness, but you can also perform the knife test.
• My quiche stuck to the pan! Always generously spray your pie plate or casserole dish with olive oil cooking spray (or butter/ghee) before adding the mixture, especially for a crustless quiche. Using a non-stick pan can also help.
• Can I add other vegetables? Absolutely! Quiches are very forgiving. Chopped bell peppers, spinach (sautéed and squeezed dry), mushrooms, or even cooked sausage/bacon bits could be delicious additions. Just be mindful of the moisture content of any added veggies.
• Can I use different cheeses? Yes, you can customize the cheese blend. Feta, goat cheese, cheddar, or gruyere would all be delicious. Just ensure you still have a good amount of cheese for flavor and texture.

Crustless Zucchini Quiche Recipe

This Crustless Zucchini Quiche is more than just a recipe; it’s a celebration of fresh, wholesome ingredients transformed into a meal that is both incredibly satisfying and remarkably healthy. Its versatility for any meal of the day, coupled with its ease of preparation and suitability for various dietary needs, makes it an absolute must-try. Whether you opt for the quick convenience of the Instant Pot or the comforting reliability of oven baking, you’re in for a treat. So grab that beautiful garden zucchini and get ready to whip up a batch of this fantastic quiche – your taste buds and your waistline will thank you!