This pesto zucchini and corn orzo casserole is a creamy, comforting dish packed with fresh vegetables and rich basil flavor. Tender orzo pasta bakes perfectly with zucchini, sweet corn, pesto, and melted cheese for a simple meal that feels both hearty and fresh. It’s an easy oven-baked recipe that works beautifully as a weeknight dinner or a flavorful side dish.
Why You’ll Love This Recipe
This casserole is perfect for busy evenings because everything cooks together in one baking dish, making cleanup incredibly easy. The orzo absorbs all the savory flavors from the broth, pesto, and vegetables while becoming perfectly tender and creamy.
The zucchini adds freshness and texture, while the sweet corn gives the dish a natural sweetness that balances the rich cheese and pesto. The melted mozzarella and Parmesan create a golden, bubbly topping that makes every bite comforting and satisfying.
Another reason to love this recipe is how versatile it is. You can serve it as a vegetarian main course or pair it with grilled chicken, fish, or roasted vegetables for a complete meal.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
2 small zucchini, sliced into 1/2-inch thick half moons
1 teaspoon salt, plus more to taste
1 cup dry orzo pasta
1 1/4 cups chicken broth or vegetable broth
1 cup frozen corn kernels
2 garlic cloves, minced
1 1/2 tablespoons olive oil, divided
2 tablespoons basil pesto, divided
1/2 teaspoon freshly ground black pepper
1/2 cup shredded mozzarella cheese
1/4 cup freshly grated Parmesan cheese
2 tablespoons chopped sweet mini peppers for garnish (optional)
Directions
Place the sliced zucchini in a bowl and sprinkle lightly with salt. Let it sit for 10 to 15 minutes to help remove excess moisture. Pat the zucchini dry with paper towels.
Preheat the oven to 400°F (200°C). Lightly grease a medium baking dish.
Add the dry orzo, broth, frozen corn, minced garlic, 1 tablespoon olive oil, and 1 tablespoon pesto to the baking dish. Stir everything well so the orzo is evenly distributed.
Arrange the zucchini slices over the top in a single layer. Drizzle the remaining olive oil over the zucchini and season with black pepper.
Cover the baking dish tightly with foil and bake for 20 minutes.
Remove the foil and gently stir the orzo underneath the zucchini. Swirl in the remaining pesto.
Sprinkle the mozzarella and Parmesan cheese evenly over the top.
Return the dish to the oven uncovered and bake for another 10 to 15 minutes, or until the cheese is melted and lightly golden and the orzo is tender.
Allow the casserole to rest for about 5 to 10 minutes before serving. Garnish with chopped sweet peppers if desired.
Servings and timing
Servings: 4 to 6 servings
Prep Time: 15 minutes
Cook Time: 30 to 35 minutes
Rest Time: 10 minutes
Total Time: About 1 hour
Variations
For extra protein, add shredded cooked chicken or roasted chickpeas before baking. You can also stir in sautéed mushrooms or spinach for additional vegetables.
If you prefer a creamier texture, mix in 1/4 cup heavy cream or cream cheese before adding the cheese topping.
Fresh corn can easily replace frozen corn during summer months and adds an even sweeter flavor. You can also swap zucchini with yellow squash or a combination of both.
For a sharper flavor, try using provolone or cheddar cheese instead of mozzarella. A sprinkle of red pepper flakes can also add a pleasant spicy kick.
Storage/Reheating
Store leftover casserole in an airtight container in the refrigerator for up to 4 days.
To reheat, place a portion in the microwave and heat for 1 to 2 minutes, stirring halfway through. You can also reheat the casserole in a 350°F oven for about 15 minutes until warmed through.
If the casserole seems dry after refrigeration, add a splash of broth or milk before reheating to restore its creamy texture.
This dish can also be frozen for up to 2 months. Thaw overnight in the refrigerator before reheating.
FAQs
Can I use fresh corn instead of frozen corn?
Yes, fresh corn works wonderfully in this recipe and adds extra sweetness and texture.
Can I make this casserole vegetarian?
Absolutely. Simply use vegetable broth instead of chicken broth.
What does orzo taste like?
Orzo is a small pasta shaped like rice. It has a mild flavor and becomes creamy when cooked in broth.
Can I prepare this casserole ahead of time?
Yes, you can assemble the dish several hours in advance and refrigerate it before baking.
Why do I need to salt the zucchini first?
Salting helps remove excess moisture from the zucchini so the casserole does not become watery.
Can I use homemade pesto?
Homemade pesto works perfectly and often gives the dish even fresher flavor.
What cheese melts best for this casserole?
Mozzarella melts beautifully, but provolone or Monterey Jack are also excellent choices.
How do I know when the orzo is fully cooked?
The orzo should be tender and most of the liquid should be absorbed.
Can I add more vegetables?
Yes, spinach, mushrooms, bell peppers, or cherry tomatoes all work well in this recipe.
Is this recipe good for meal prep?
Yes, it reheats very well and makes an excellent make-ahead lunch or dinner option.
Conclusion
Pesto zucchini and corn orzo casserole is a simple yet flavorful dish that combines fresh vegetables, creamy pasta, and melted cheese in one comforting bake. The bright pesto flavor pairs perfectly with sweet corn and tender zucchini, creating a satisfying meal that feels both hearty and fresh. Whether served as a main dish or side, this easy casserole is sure to become a regular favorite for busy weeknights and family dinners.
This pesto zucchini and corn orzo casserole is a creamy and comforting baked pasta dish filled with tender orzo, fresh zucchini, sweet corn, basil pesto, and melted cheese. It is an easy one-dish meal that combines fresh vegetables with rich, savory flavors for a hearty yet fresh dinner or side dish.
Ingredients
2 small zucchini, sliced into 1/2-inch thick half moons
1 teaspoon salt, plus more to taste
1 cup dry orzo pasta
1 1/4 cups chicken broth or vegetable broth
1 cup frozen corn kernels
2 garlic cloves, minced
1 1/2 tablespoons olive oil, divided
2 tablespoons basil pesto, divided
1/2 teaspoon freshly ground black pepper
1/2 cup shredded mozzarella cheese
1/4 cup freshly grated Parmesan cheese
2 tablespoons chopped sweet mini peppers for garnish (optional)
Instructions
Place the sliced zucchini in a bowl and sprinkle lightly with salt. Let sit for 10 to 15 minutes, then pat dry with paper towels.
Preheat the oven to 400°F (200°C) and lightly grease a medium baking dish.
Add the dry orzo, broth, frozen corn, minced garlic, 1 tablespoon olive oil, and 1 tablespoon pesto to the baking dish. Stir well.
Arrange the zucchini slices over the top in a single layer.
Drizzle the remaining olive oil over the zucchini and season with black pepper.
Cover the baking dish tightly with foil and bake for 20 minutes.
Remove the foil and gently stir the orzo underneath the zucchini. Swirl in the remaining pesto.
Sprinkle the mozzarella and Parmesan cheese evenly over the top.
Return the dish to the oven uncovered and bake for another 10 to 15 minutes until the cheese is melted and lightly golden and the orzo is tender.
Let the casserole rest for 5 to 10 minutes before serving. Garnish with chopped sweet peppers if desired.
Notes
Use vegetable broth to make the recipe fully vegetarian.
Add shredded chicken or roasted chickpeas for extra protein.
Fresh corn can replace frozen corn for a sweeter flavor.
Spinach, mushrooms, bell peppers, or cherry tomatoes make excellent additions.
Heavy cream or cream cheese can be added for a creamier texture.
Provolone, Monterey Jack, or cheddar cheese can replace mozzarella.
Store leftovers in the refrigerator for up to 4 days.
Add a splash of broth or milk when reheating if the casserole becomes dry.
Freeze for up to 2 months and thaw overnight before reheating.
