Cheesy Baked Zucchini Casserole

Sink your teeth into a dish that combines the freshness of zucchini, the richness of gooey cheeses, and the savory essence of herbs and spices with our Cheesy Baked Zucchini Casserole. Whether you’re planning a cozy family dinner or a potluck gathering, this comforting casserole is a crowd-pleaser that promises to tantalize your taste buds. Let’s dive into the recipe and discover the steps to create this culinary masterpiece.


  • 1 can Pillsbury crescent rolls
  • 8 oz shredded provolone or asiago cheese
  • 8 oz shredded mozzarella cheese or Gruyere
  • 1 tablespoon parsley
  • 1 tablespoon garlic powder
  • 1 tablespoon dried oregano
  • 1 teaspoon olive oil
  • 4 tablespoons salted butter
  • ¼ cup heavy cream
  • 1 medium onion, finely chopped
  • 4 ½ cups chopped zucchini
  • 3 large eggs
  • 1 teaspoon salt (or to taste)
  • 1 teaspoon black pepper


  1. Preheat Oven: Start by preheating your oven to 400°F (200°C). Grease an 8×8 baking dish with pam or butter.
  2. Prepare Crescent Rolls: Roll out the crescent dough into the prepared baking dish, ensuring it covers the bottom evenly.
  3. Cook Zucchini and Onions: In a large skillet, melt the butter and olive oil over medium heat. Add the chopped onions and zucchini, cooking until slightly tender, about 7 minutes. Set aside once done.
  4. Prepare Egg Mixture: In a small bowl, whisk together parsley, garlic powder, oregano, heavy cream, eggs, salt, and black pepper until well combined.
  5. Combine Ingredients: Pour the egg mixture into the skillet with the cooked zucchini and onions, stirring to combine. Add the shredded provolone (or asiago) and mozzarella (or Gruyere) cheeses to the skillet, mixing until evenly distributed.
  6. Assemble Casserole: Pour the zucchini and cheese mixture over the crescent rolls in the baking dish, spreading it out evenly.
  7. Bake: Place the baking dish in the preheated oven and bake for 40-45 minutes, or until the top is slightly browned and the casserole is cooked through.
  8. Serve: Once done, remove from the oven and let it cool for a few minutes before serving. Slice into squares and serve warm.

Serving and Storage Tips:

  1. Serve Warm: This casserole is best enjoyed fresh from the oven when the cheese is gooey and the flavors are at their peak.
  2. Refrigerate Leftovers: Store any leftovers in an airtight container in the refrigerator for up to 3-4 days.
  3. Reheat Before Serving: When reheating leftovers, place them in the oven or microwave until heated through to restore the flavors and texture.
  4. Customize Toppings: Get creative with toppings by adding a sprinkle of fresh herbs or a drizzle of balsamic glaze before serving for an extra flavor boost.
  5. Pair with Sides: Serve this casserole alongside a fresh green salad or garlic bread for a complete and satisfying meal.
  6. Make Ahead: You can prepare the casserole in advance and bake it when ready to serve for added convenience.
  7. Freeze for Later: While not recommended, you can freeze the casserole before baking for up to 1 month. Thaw overnight in the refrigerator before baking as directed.
  8. Portion Control: Consider cutting the casserole into individual servings before refrigerating to make it easier to reheat and enjoy later.


  1. Grate Additional Cheese on Top: For extra cheesy goodness, sprinkle additional shredded cheese on top of the casserole before baking to create a golden, bubbling crust.
  2. Add a Crispy Bacon Topping: Enhance the flavor and texture by topping the casserole with crispy crumbled bacon just before serving for a savory twist.
  3. Incorporate Different Herbs: Experiment with different herbs such as basil, thyme, or rosemary to add depth and freshness to the dish.
  4. Mix in Sautéed Mushrooms: Introduce earthy flavors by sautéing mushrooms and incorporating them into the zucchini and cheese mixture for added richness.
  5. Swap Cheese Varieties: Explore different cheese combinations such as sharp cheddar, creamy brie, or tangy goat cheese to customize the flavor profile to your liking.
  6. Include Sliced Tomatoes: Layer thinly sliced tomatoes on top of the zucchini mixture before adding the cheese for a pop of color and refreshing taste.
  7. Add a Crunchy Panko Topping: Mix panko breadcrumbs with melted butter and sprinkle them over the cheese layer before baking to create a crispy, golden topping.
  8. Stir in Sun-Dried Tomatoes: Incorporate chopped sun-dried tomatoes into the zucchini and cheese mixture for a burst of sweet and tangy flavor.
  9. Infuse with Fresh Garlic: Enhance the savory profile by adding minced fresh garlic to the zucchini mixture for an aromatic boost.
  10. Include Diced Bell Peppers: Add diced bell peppers for a vibrant touch of color and a subtle sweetness to complement the savory cheese and zucchini.
  11. Layer with Spinach: Introduce nutrient-rich spinach by layering it between the zucchini and cheese mixture for added texture and a dose of greens.
  12. Drizzle with Balsamic Glaze: Finish the casserole with a drizzle of balsamic glaze before serving to add a hint of sweetness and tanginess to each bite.
  13. Garnish with Fresh Herbs: Sprinkle freshly chopped herbs such as parsley, basil, or chives over the finished casserole for a burst of freshness and visual appeal.
  14. Serve with Dipping Sauces: Accompany the casserole with dipping sauces such as marinara sauce, ranch dressing, or pesto for extra flavor options.
  15. Experiment with Spice Blends: Customize the seasoning by trying different spice blends such as Cajun, Italian, or Mexican to create unique flavor profiles that suit your taste preferences.
  1. Roasted Vegetable Variation: Roast additional vegetables like bell peppers, eggplant, and cherry tomatoes alongside the zucchini for a colorful and flavorful twist.
  2. Sausage and Zucchini Casserole: Brown Italian sausage and mix it into the zucchini and cheese mixture for a heartier dish with added protein.
  3. Greek-Inspired Casserole: Incorporate Mediterranean flavors by adding crumbled feta cheese, Kalamata olives, and fresh dill to the zucchini mixture.

FAQs :

  1. Can I use fresh herbs instead of dried? Yes, you can use fresh parsley, garlic, and oregano if preferred. Just adjust the quantities to taste.
  2. Can I substitute the crescent rolls with another type of dough? Yes, you can use puff pastry or pie crust as alternatives to crescent rolls for the base of the casserole.
  3. Can I add other vegetables to the casserole? Absolutely! Feel free to add your favorite vegetables such as bell peppers, mushrooms, or spinach to customize the casserole to your liking.
  4. Is it necessary to precook the zucchini and onions? Precooking the zucchini and onions helps to soften them and release their flavors, but you can skip this step if you prefer a crunchier texture.
  5. Can I make this casserole ahead of time? Yes, you can assemble the casserole up to a day in advance and bake it when ready to serve for added convenience.
  6. Can I use different types of cheese? Absolutely! Feel free to experiment with different cheeses to create your own unique flavor combinations.
  7. Can I make this casserole gluten-free? Yes, you can use gluten-free crescent rolls or substitute the crust with a gluten-free alternative to make this casserole gluten-free.
  8. Can I use frozen zucchini instead of fresh? While fresh zucchini is recommended for the best texture and flavor, you can use frozen zucchini if fresh is not available. Just make sure to thaw and drain it before using.
  9. Can I add meat to the casserole? Yes, you can add cooked chicken, ham, or bacon to the casserole for added protein and flavor.
  10. Can I make this casserole vegetarian? Yes, you can omit the meat and use vegetable broth instead of chicken broth to make this casserole vegetarian-friendly.

Dive into the cheesy goodness of our Baked Zucchini Casserole and treat your taste buds to a flavorful culinary experience that’s both satisfying and comforting. Enjoy the wholesome blend of zucchini, cheese, and spices with every delicious bite!