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A crustless quiche is a delightful, low-carb alternative to traditional quiches, offering the same creamy texture and robust flavors without the added calories from pastry. This Kale and Caramelized Onion Crustless Quiche is packed with nutrient-rich kale, sweet caramelized onions, and melted cheese, making it a perfect dish for breakfast, brunch, or a light dinner. Itโs easy to prepare, requires minimal ingredients, and is versatile enough to accommodate your preferences.
Letโs dive into how you can prepare this savory, protein-packed dish thatโs both healthy and satisfying.
Prep Time, Cooking Time, and Nutrition Information
- Prep Time: 15 minutes
- Cooking Time: 45 minutes
- Total Time: 1 hour
- Servings: 4
- Calories per Serving: ~200 kcal
Ingredients for Kale and Caramelized Onion Crustless Quiche
Hereโs what youโll need to make this delicious quiche:
- 4 large eggs
- 1 cup milk (any type, but whole milk provides the creamiest texture)
- 1 1/2 cups kale, chopped
- 1 medium onion, thinly sliced
- 1/2 cup shredded cheese (cheddar or Swiss works best)
- 1 tbsp olive oil
- Salt and pepper to taste

Directions for Kale and Caramelized Onion Crustless Quiche
1. Preheat Your Oven
Set your oven to 375ยฐF (190ยฐC). Grease a 9-inch pie dish or baking dish with a light coating of oil or butter to prevent sticking.
2. Caramelize the Onions
Caramelizing onions enhances their natural sweetness, giving the dish a deep, rich flavor.
- Heat 1 tbsp olive oil in a skillet over medium heat.
- Add the sliced onions and stir occasionally for about 15 minutes, or until they turn golden brown and soft.
- Set aside to cool slightly.
3. Prepare the Egg Mixture
- In a medium-sized bowl, crack 4 eggs and whisk them until the yolks and whites are combined.
- Gradually add 1 cup milk while whisking to create a smooth mixture.
- Season with salt and pepper to taste.
4. Assemble the Quiche
- Spread the caramelized onions evenly in the prepared pie dish.
- Add 1 1/2 cups chopped kale, spreading it over the onions.
- Pour the egg mixture over the kale and onions, ensuring itโs evenly distributed.
- Sprinkle 1/2 cup shredded cheese on top for a melty, golden crust.
5. Bake
Place the dish in the preheated oven and bake for 25-30 minutes, or until the center is set and the top is golden.
- To check doneness, insert a toothpick into the center; it should come out clean.
6. Cool and Serve
Allow the quiche to cool for 5 minutes before slicing. This makes it easier to cut and enhances the flavors.
Tips for the Perfect Kale and Caramelized Onion Crustless Quiche
- Use Fresh Ingredients: Fresh kale and high-quality cheese make a noticeable difference in flavor.
- Even Baking: For even cooking, ensure the kale and onions are distributed evenly in the dish before pouring the egg mixture.
- Customizations: Add other vegetables like bell peppers, mushrooms, or zucchini for additional flavors.
- Dairy Alternatives: Use almond or oat milk if you prefer dairy-free options.
Health Benefits of Kale and Caramelized Onion Crustless Quiche
- Rich in Nutrients: Kale is loaded with vitamins A, K, and C, as well as antioxidants and fiber.
- Protein-Packed: Eggs are an excellent source of protein, promoting muscle health and keeping you full.
- Low-Carb: This crustless version eliminates unnecessary carbs, making it suitable for keto and low-carb diets.
- Heart-Healthy Fats: Olive oil and cheese provide healthy fats, essential for energy and cell function.
FAQs
Can I Make This Quiche Ahead of Time?
Yes! This quiche stores well in the refrigerator for up to 3 days. Reheat slices in the microwave or oven before serving.
Can I Freeze the Quiche?
Absolutely. Once cooled, wrap the quiche tightly in plastic wrap and store in a freezer-safe bag. It keeps for up to 2 months. Thaw overnight in the fridge and reheat before serving.
What Can I Serve With It?
Pair this quiche with a light side salad, roasted vegetables, or whole-grain toast for a complete meal.

Conclusion
The Kale and Caramelized Onion Crustless Quiche is a simple yet flavorful dish that combines healthy ingredients and savory tastes. Whether youโre meal prepping, hosting a brunch, or just want a wholesome meal, this quiche is a versatile and reliable choice. Try it out, customize it to suit your preferences, and enjoy the goodness of fresh, home-cooked food.
Try This Recipe Today!
Impress your family or guests with this easy-to-make, nutrient-packed dish. Enjoy the perfect balance of flavors while benefiting from the wholesome ingredients.