1-First Step: Preheat and Prepare the Crust Begin by preheating your oven to 350°F, which ensures even baking later. Let the 9-inch refrigerated pie dough sit at room temperature for a few minutes, then roll it out to about 12 inches in diameter. Fit it into a 9-inch deep pie dish, trim any excess, and crimp the edges for a nice look.

2-Second Step: Par-Bake the Crust Prick the bottom of the pie crust with a fork to prevent it from puffing up. Place it on a sheet pan for stability and par-bake it for 10 to 15 minutes until it’s just set. This step, which takes about 15 minutes total, helps keep the crust crisp and avoids sogginess from the veggies.

3-Third Step: Sauté the Vegetables Heat 1 tablespoon of olive oil in a skillet over medium heat. Add ¼ cup diced red onion and 1 large minced garlic clove, sauté for 30 seconds until fragrant. Then, toss in 2 medium thinly sliced zucchini along with ½ teaspoon salt and ½ teaspoon pepper, and cook for 7 to 8 minutes until tender. For this zucchini quiche, use a slotted spoon to transfer about three-quarters of the mixture to the par-baked crust, as this reduces excess moisture.

4-Fourth Step: Mix the Egg Filling In a large bowl, whisk together 6 large eggs, ½ cup skim milk, ½ cup part-skim ricotta cheese, ½ cup part-skim shredded mozzarella cheese, 2 tablespoons grated Parmesan cheese, 2 tablespoons chopped fresh basil, and the remaining salt and pepper. Stir until everything is uniform, which should take just a minute or two. This mixture forms the heart of your zucchini quiche, providing a creamy base.

5-Fifth Step: Assemble and Bake Pour the egg mixture over the zucchini in the crust, then top with the remaining sautéed zucchini and sprinkle with extra Parmesan cheese. Cover the edges of the crust with foil to prevent burning, and bake at 350°F for 50 minutes to 1 hour. Check for doneness when the top is golden and the center is set; this step adapts well if you need to add more veggies for dietary preferences.

6-Final Step: Cool and Serve Once baked, let the quiche cool for at least 10 minutes to make slicing easier. Garnish with fresh basil for a pop of color and flavor. Serve it warm, and enjoy with sides like salad for a complete meal. The total time is about 1 hour 30 minutes, and it yields 6 servings, making it perfect for family dinners. For more recipe ideas, explore our site with a spinach frittata guide that complements this one.