Welcome to the ultimate guide for creating a delightful and incredibly easy Crustless Bisquick Zucchini Quiche! This versatile dish is a fantastic option for any meal of the day – whether you’re planning a hearty breakfast, a leisurely brunch, or a light dinner. It combines the fluffy texture of an egg pie with the fresh, wholesome goodness of zucchini, all without the fuss of a traditional pie crust. With Bisquick as its secret ingredient, this “impossible” quiche practically makes itself, offering a simple yet satisfying culinary experience that’s sure to become a family favorite.

If you’re a fan of savory egg-based dishes, this zucchini quiche with Bisquick recipe is about to elevate your home cooking. It’s perfect served on its own, perhaps with a fresh side salad, or as an accompaniment to a larger meal. Our kitchen is always buzzing with creative ways to use Bisquick, and this recipe stands out for its simplicity and incredible flavor. Forget complicated pastry techniques; this approach focuses on the delicious filling, making it accessible for even novice cooks.
The Magic of Crustless Zucchini Quiche
Many have fallen in love with the convenience and taste of our crustless spinach quiche, and now it’s time to explore a new vegetable star: zucchini! For those who have grown zucchini in their gardens, you know how abundant it can be. This recipe is an excellent way to utilize your harvest or simply enjoy a fresh, seasonal vegetable. Eliminating the crust not only saves time and effort but also makes the quiche lighter and lower in carbohydrates, appealing to those seeking healthier meal options without compromising on flavor.
Bisquick is much more than just a mix for fluffy biscuits. It’s a versatile pantry staple that acts as a superb thickening agent, creating a self-crusting base for many “impossible” pies and quiches. This allows for a delightful, tender texture that holds together beautifully without the need for a separate pie shell. Once you discover the ease of this method, you’ll be inspired to explore a multitude of savory and even sweet Bisquick recipes!

Crafting the Perfect Bisquick Impossible Quiche
The beauty of an “impossible” pie, like our Coconut Bisquick Impossible Pie Recipe, lies in its self-crusting nature. The Bisquick mixture settles to form a tender bottom layer during baking, creating a cohesive, sliceable quiche without any separate crust preparation. The key to ensuring it holds its shape perfectly is allowing it ample resting time after baking. A good 10-15 minutes of cooling in the pie pan helps the egg and Bisquick mixture set firmly, resulting in clean, elegant slices every time.
While you could certainly opt for one of our 3-ingredient pie crust recipes, the essence of this dish is its simplicity and focus on the flavorful filling. Skipping the crust entirely means fewer carbs and a quicker prep time – all without sacrificing any of the deliciousness. The interior is truly the star here, bursting with savory goodness. This particular recipe is designed for a standard 9-inch pie pan, yielding a generous, comforting quiche.
For those who prefer individual portions or a faster bake, consider adapting this recipe to a muffin tin, similar to our crustless broccoli quiche muffins. Muffin tin quiches bake up quicker and offer charming, crisp edges all around. We’ve experimented with various vegetables in this format, from broccoli to mushrooms, creating delightful mini egg bites that are perfect for grab-and-go breakfasts or party appetizers.

Essential Ingredients for Your Zucchini Quiche
Creating this delicious crustless zucchini quiche requires only a handful of common ingredients, making it a convenient choice for any day of the week. Here’s what you’ll need:
- 1 cup Bisquick Original: Ensure you use the regular version for the best results, as low-fat or heart-healthy alternatives may alter the texture.
- 1 medium Zucchini: Thinly sliced. This is the star vegetable, offering a delicate flavor and tender texture. You can also use yellow squash or a combination of both.
- 4 large Eggs: The foundation of any great quiche, providing a rich and fluffy base.
- 1/3 cup Vegetable Oil: Helps achieve the perfect texture and richness in the quiche batter.
- 1/2 cup Shredded Mozzarella Cheese: For its melty texture and mild flavor.
- 1/2 cup Shredded Cheddar Cheese: Adds a sharp, savory depth to the cheese blend.
- 1/2 cup Grated Parmesan Cheese: Contributes a nutty, umami kick that enhances the overall taste.
- 1/2 small Diced Onion: Optional, but highly recommended for an extra layer of savory flavor. Bell peppers can also be added for color and sweetness.
- 1/2 teaspoon Dried Oregano: A classic herb that pairs wonderfully with zucchini and cheese.
- 1/2 teaspoon Dried Basil: Adds a fragrant, slightly sweet note.
- A pinch of Salt and Pepper: To taste, enhancing all the other flavors.
- Nonstick Cooking Spray: For preparing your pie pan.
- 9-inch Pie Pan: The ideal vessel for baking this quiche.
- Wire Rack: For cooling the quiche after baking.
Flavorful Variations and Substitutions
While the recipe above provides a fantastic foundation, feel free to customize your easy zucchini quiche to suit your preferences. Traditionally, quiches often feature Swiss cheese, but for this recipe, a blend of mozzarella, cheddar, and parmesan truly shines! This trio creates a more robust flavor profile and contributes to a beautiful golden-brown crustless top. Experiment with your favorite cheeses, adjusting the amounts as desired.
For those who enjoy a heartier quiche, consider adding a quarter cup of finely diced cooked ham or crumbled, cooked bacon to the mixture. This introduces a delicious smoky or salty element that complements the vegetables and cheeses perfectly. You could even get creative and add diced fish, much like in our salmon quiche recipe.
As for seasonings, a simple sprinkle of salt and pepper is usually sufficient. However, if you’re mindful of sodium intake, you can certainly reduce or omit the salt. If you’re looking to incorporate other vegetables, consider adding them finely chopped. For example, a tender companion to zucchini could be microwave-cooked acorn squash, served alongside your quiche for a healthy and delicious duo.

Should You Sauté Vegetables Before Adding to Quiche?
This is a common question when making quiches, especially with moisture-rich vegetables like zucchini. Generally, if you’re using shredded vegetables, it’s a good idea to sauté or salt them first to draw out excess moisture. This prevents the quiche from becoming watery or soggy. However, for this vegetable quiche recipe, we’re using thinly sliced zucchini, which are larger pieces. In this case, pre-sautéing is not necessary, as the slices retain their texture better and release less water into the batter compared to finely shredded versions.
You can use either green zucchini, yellow squash, or a combination of both for this recipe. One medium-sized zucchini is typically sufficient, but if you have two smaller ones, using one of each color can add a visually appealing touch to your quiche. The important thing is to slice them thinly and uniformly for even cooking.
Step-by-Step: How to Make Bisquick Crustless Quiche
Making this crustless Bisquick zucchini quiche is incredibly straightforward, perfect for a busy weeknight or a relaxed weekend meal. Follow these simple steps for a perfect result every time:
- Preheat your oven to 350°F (175°C) to ensure even baking.
- Prepare your pie pan by lightly spraying a 9-inch pie pan with nonstick cooking spray. This will help prevent sticking and make for easy removal of slices.
- In a large mixing bowl, combine the eggs and Bisquick. Whisk them together until just blended.
- Add the remaining ingredients: Stir in the vegetable oil, shredded mozzarella, cheddar, and parmesan cheeses, oregano, basil, and a pinch of salt and pepper. Mix until all ingredients are well incorporated.
- Gently fold in the thinly sliced zucchini and diced onions (if using). Be sure to reserve a few slices of zucchini to arrange decoratively on top of your quiche before baking. If you’re adding cooked meat like ham or bacon, fold it in at this stage as well.
- Pour the batter evenly into your prepared pie pan. Arrange the reserved zucchini slices on top.
- Bake for approximately 30-35 minutes, or until the top of the quiche is a beautiful golden brown and the center feels set and no longer wet when gently jiggled or tested with a knife.
Once baked, remove the quiche from the oven and allow it to rest in the pie pan for at least 10 minutes before slicing and serving. This crucial resting period allows the egg mixture to solidify further, ensuring that each slice comes out clean and intact, especially since there isn’t a pastry crust to hold it together. Patience here will be rewarded with a perfectly presented quiche!

Frequently Asked Questions About Crustless Quiche
- What do you call a quiche without a crust?
- While you can simply call it a “crustless quiche,” technically, a dish with an egg custard base and no crust is often referred to as a frittata. However, the term “crustless quiche” is widely understood and embraced, highlighting its deliciousness with fewer carbs due to the missing dough. It just needs a bit more time to cool and solidify than a traditional quiche before slicing, but it’s absolutely worth trying!
- What should you avoid putting in quiche?
- To ensure your quiche is perfect every time, consider these common pitfalls:
- Excess Moisture: Ingredients like canned mushrooms or thawed frozen vegetables should be thoroughly drained or blotted dry before adding to prevent a watery quiche.
- Overpowering Flavors: Strong cheeses like blue cheese or very aged goat cheese should be used sparingly, as their intense flavors can easily dominate the delicate quiche profile.
- Raw Meats: Avoid putting raw sausage, bacon, or other meats directly into the quiche mixture. They may not cook through adequately within the egg’s baking time. Always pre-cook and drain meats before adding.
- Excessive Sweetness: Unless you’re specifically making a dessert quiche, avoid ingredients like overly sweet caramelized onions (if used in large quantities), dried fruits, or sugary glazes, which can throw off the savory balance.
- How do you store leftover crustless quiche?
- To keep your leftover quiche fresh and delicious, allow it to cool completely. Then, it’s best to wrap each piece individually with plastic wrap or store them in an airtight container in the refrigerator. Enjoy your leftovers within 3 days. To reheat, simply warm individual slices in the microwave for 45 seconds to 1 minute, or until heated through.
Bisquick Zucchini Quiche Recipe
Bisquick Zucchini Quiche
By Justine
Crustless Bisquick zucchini quiche is here! Enjoy for breakfast, brunch or dinner. Fluffy egg pie with slices of squash is easy to make.
- Prep Time: 15 mins
- Cook Time: 32 mins
- Servings: 8
Equipment
- 1 pie pan
Ingredients
- 1 c bisquick
- 1 zucchini, thinly sliced
- 4 eggs
- 1/3 c vegetable oil
- 1/2 c mozzarella cheese, shredded
- 1/2 c cheddar cheese
- 1/2 c parmesan cheese
- 1/2 small onion, diced
- 1/2 tsp oregano
- 1/2 tsp basil
- 1 pinch salt and pepper
Instructions
- Preheat oven to 350 degrees F. & spray a 9 inch pie pan with nonstick cooking spray. In a large bowl, combine eggs and Bisquick.
- Add vegetable oil, cheese, oregano, basil, salt & pepper. Stir well. Fold in the sliced zucchini & onions (reserving a few slices of zucchini for the top of your quiche).
- Pour the batter into the prepared pie pan. Top with the reserved zucchini slices. Bake for approximately 30-35 minutes, or until the top of the quiche is a golden brown and middle is no longer wet.
- Remove and allow to sit in pie pan for 10 minutes before slicing and serving so it can further set.
Nutrition (Approximate per serving)
- Serving: 2oz
- Calories: 182kcal
- Carbohydrates: 11g
- Protein: 9g
- Fat: 11g
- Saturated Fat: 5g
- Polyunsaturated Fat: 1g
- Monounsaturated Fat: 4g
- Trans Fat: 0.01g
- Cholesterol: 101mg
- Sodium: 417mg
- Potassium: 159mg
- Fiber: 1g
- Sugar: 3g
- Vitamin A: 353IU
- Vitamin C: 5mg
- Calcium: 176mg
- Iron: 1mg
Nutrition information is automatically calculated, so should only be used as an approximation.
Additional Info
- Course: Entree, Main Course
- Cuisine: American, French
