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Crustless Zucchini Tomato Quiche

This Crustless Zucchini Tomato Quiche is a quick and reliable recipe that delivers all the creamy, cheesy goodness of traditional quiche without the hassle of a crust. Perfect for brunch, lunch, or dinner, it transforms humble zucchini, tomatoes, and cheese into a versatile and satisfying dish.
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Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
Servings: 4 servings
Course: Main Course
Cuisine: American
Calories: 485
Ingredients Equipment Method Notes

Ingredients
  

Ingredients
  • 1 tablespoon olive oil
  • 1 small onion, finely chopped
  • 2 medium zucchinis (about 3 cups), thinly sliced
  • 2 medium tomatoes, seeded and diced
  • 3 large eggs
  • 1 cup milk (whole or 2%)
  • 1/2 cup heavy cream (or additional milk)
  • 1 cup shredded mozzarella cheese
  • 1/2 cup grated Parmesan cheese
  • 2 cloves garlic, minced
  • 1 teaspoon dried basil (or 1 tablespoon fresh basil, chopped)
  • 1/2 teaspoon dried oregano
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • Pinch red pepper flakes (optional)

Equipment

  • 9-inch pie dish or quiche pan
  • Large skillet
  • Mixing bowl

Method
 

  1. Preheat your oven to 375°F (190°C).
  2. Prepare a 9-inch pie dish or quiche pan by coating it with cooking spray or butter to prevent sticking.
  3. Heat 1 tablespoon of olive oil in a large skillet over medium heat. Add the finely chopped small onion and cook for about 3 minutes until translucent and soft.
  4. Add the thinly sliced zucchinis and minced garlic to the skillet. Cook for another 5-6 minutes until the zucchini softens but still retains some texture. Remove from heat and let the vegetables cool slightly.
  5. In a mixing bowl, whisk together 3 large eggs, 1 cup of milk, and 1/2 cup of heavy cream until smooth. Stir in the seasonings: 1 teaspoon dried basil (or 1 tablespoon fresh basil if using), 1/2 teaspoon dried oregano, 1/2 teaspoon salt, 1/4 teaspoon black pepper, and a pinch of red pepper flakes (if desired).
  6. Spread the cooled zucchini mixture evenly into the prepared baking dish. Scatter the diced tomatoes over the top, then sprinkle with shredded mozzarella and grated Parmesan cheese.
  7. Pour the egg mixture evenly over all the ingredients in the dish.
  8. Bake in the preheated oven for about 35-40 minutes, until the center is set and the top is a gorgeous golden brown. A knife inserted in the center should come out clean.
  9. Remove the quiche from the oven and allow it to cool slightly before serving.

Notes

This crustless quiche is ideal for those who need a quick yet satisfying meal at any time of the day. The absence of a crust makes it lighter, while the combination of zucchini, tomatoes, and a rich egg and cheese mixture provides both flavor and texture. You can easily customize the recipe by swapping out cheeses or adding proteins like ham, bacon, or chicken. It also stores well in the refrigerator, making it a great option for meal prep.