If you’re looking for a cozy, flavorful dish that brings together the fresh brightness of summer vegetables and the comforting heartiness of cornbread, this Zucchini Cornbread Casserole Recipe is exactly what you need. It’s a delightful casserole loaded with shredded zucchini, sweet corn, sharp cheddar, and a touch of jalapeño for just the right kick. This recipe is wonderfully simple to make yet delivers a burst of colors, textures, and tastes that will have everyone asking for seconds. Whether you’re serving it at a family dinner or bringing it to a potluck, it’s sure to become your new favorite dish.

Ingredients You’ll Need
Every ingredient in this recipe plays an essential role in creating the perfect balance of flavor and texture. From the moist, tender zucchini to the rich, melted cheddar, each component is simple but crucial. Here’s what you’ll want to gather before you get started:
- 3 1/2 cups shredded zucchini (drained): Make sure to squeeze out excess moisture for the best texture.
- 1 white onion (finely diced): Adds subtle sweetness and a touch of crunch to every bite.
- 16 oz premium cheddar cheese (shredded and divided): Sharp cheddar brings richness and melts perfectly over the casserole.
- 1 cup corn (thawed): Sweet corn kernels add pops of color and natural sweetness.
- 1 jalapeño (finely diced): Gives a mild spicy kick to wake up the flavors.
- 2 large eggs: The binding agent that holds everything together beautifully.
- 1 package (8.5 oz) corn muffin mix: This is the base of the cornbread, helping create that classic crumbly and tender texture.
How to Make Zucchini Cornbread Casserole Recipe
Step 1: Prep the Oven and Baking Dish
Start by preheating your oven to 350°F and greasing an 8-by-8-inch baking dish. This ensures your casserole won’t stick and makes cleanup a breeze.
Step 2: Mix the Veggies and Cheese
In a large mixing bowl, combine your drained shredded zucchini, diced white onion, half of the shredded cheddar, thawed corn, finely diced jalapeño, eggs, and seasonings like garlic powder, cumin, salt, and black pepper. This step is where the flavors start mingling deliciously.
Step 3: Add the Corn Muffin Mix
Gradually stir in the corn muffin mix. Take your time here so everything blends evenly, resulting in that perfect cornbread texture throughout the casserole.
Step 4: Assemble in the Baking Dish
Pour your mixture into the prepared baking dish, smoothing the top gently. Then sprinkle the remaining cheddar cheese over the surface to create a golden, melty topping once baked.
Step 5: Bake Until Golden and Set
Bake for 50 to 55 minutes until the casserole is beautifully golden brown on top and set firmly in the center. This is the point where all those flavors have fully married into a comforting, cohesive dish.
Step 6: Cool and Serve
Allow the casserole to cool slightly before serving warm. This resting time helps it set perfectly, making it easier to cut and serve happy portions.
How to Serve Zucchini Cornbread Casserole Recipe

Garnishes
A sprinkle of fresh chopped parsley or cilantro brightens up the casserole right before serving, while a dollop of sour cream or a drizzle of hot sauce adds an indulgent, creamy, or spicy finish depending on your mood.
Side Dishes
This casserole pairs wonderfully with light, fresh sides like a crisp garden salad or tangy coleslaw to balance the richness. Alternatively, serve alongside roasted chicken or grilled pork for a complete, satisfying meal.
Creative Ways to Present
For a fun twist, try scooping the casserole onto individual plates and topping each serving with avocado slices and a squeeze of lime juice. You can also layer it in a deep dish pie form for a more rustic look that impresses guests.
Make Ahead and Storage
Storing Leftovers
If you have any leftovers from this Zucchini Cornbread Casserole Recipe, store them in an airtight container in the refrigerator. They will keep fresh for up to 3 days, making it a great dish for next-day lunches or quick dinners.
Freezing
You can absolutely freeze this casserole before or after baking. Wrap it tightly with plastic wrap and then foil, or place it in a freezer-safe container. It will keep well for up to 3 months without losing flavor or texture.
Reheating
When ready to enjoy again, reheat leftovers in the oven at 350°F until warmed through, about 15–20 minutes. This method helps the cornbread topping stay crisp rather than soggy, preserving that wonderful texture.
FAQs
Can I use frozen zucchini instead of fresh?
Fresh zucchini is best for this recipe because it has a firmer texture and less water. However, if you use frozen zucchini, be sure to thaw it well and squeeze out as much moisture as possible to prevent the casserole from becoming watery.
What can I substitute for the corn muffin mix?
If you don’t have corn muffin mix on hand, you can use 1 cup of cornmeal combined with ¾ cup all-purpose flour, 1 tablespoon baking powder, and a pinch of salt as a homemade alternative. Adjust the liquids slightly if needed.
Is this recipe spicy with the jalapeño?
The jalapeño adds only a mild heat that complements the sweetness of the corn and the creaminess of the cheese. If you prefer less spice, simply omit it or use a smaller amount.
Can this be made vegan or dairy-free?
To make a vegan version, substitute the cheddar cheese with plant-based cheese, replace the eggs with flax eggs or another binder, and use a dairy-free cornbread mix or homemade blend. The texture and taste will be slightly different but still delicious.
How long does the casserole last after baking?
Once cooked, the casserole stays fresh in the refrigerator for about 3 days. Make sure to cover it well to maintain moisture and prevent it from drying out.
Final Thoughts
There’s just something so heartwarming about a dish like this Zucchini Cornbread Casserole Recipe. It strikes the perfect balance between fresh and comforting, simple yet packed with flavor, making it a staple you’ll want to return to time and again. Give it a try next time you want to impress yourself and your loved ones with a comforting, veggie-filled meal that never gets old.
Print
Zucchini Cornbread Casserole Recipe
- Prep Time: 15 minutes
- Cook Time: 55 minutes
- Total Time: 1 hour 10 minutes
- Yield: 8 servings
- Category: Casserole
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Description
A savory and moist Zucchini Cornbread Casserole that combines fresh shredded zucchini, sweet corn, sharp cheddar cheese, and a kick of jalapeño for a delicious baked side or main dish. This easy-to-make casserole uses corn muffin mix for a delightful texture and is perfect for family dinners or potlucks.
Ingredients
Vegetables and Mix-ins
- 3 1/2 cups shredded zucchini (drained)
- 1 white onion (finely diced)
- 1 cup corn (thawed)
- 1 jalapeño (finely diced)
Dairy
- 16 oz premium cheddar cheese (shredded and divided)
Other
- 2 large eggs
- 1 package (8.5 oz) corn muffin mix
- 1 tsp garlic powder
- 1/2 tsp cumin
- 1/2 tsp salt
- 1/4 tsp black pepper
Instructions
- Preheat Oven and Prepare Dish: Preheat your oven to 350°F and grease an 8×8-inch baking dish to prevent sticking and ensure easy serving.
- Mix Ingredients: In a large mixing bowl, combine the drained shredded zucchini, finely diced white onion, half of the shredded cheddar cheese, thawed corn, finely diced jalapeño, eggs, garlic powder, cumin, salt, and black pepper. Mix these ingredients until evenly incorporated.
- Add Corn Muffin Mix: Gradually add the corn muffin mix into the vegetable and egg mixture. Stir gently but thoroughly until all ingredients are well combined into a batter.
- Transfer to Baking Dish: Pour the batter into the prepared greased baking dish, spreading it out evenly. Sprinkle the remaining shredded cheddar cheese over the top to create a cheesy crust.
- Bake: Place the baking dish in the preheated oven and bake for 50 to 55 minutes, or until the casserole is golden brown on top and set in the center. A toothpick inserted should come out mostly clean.
- Cool and Serve: Allow the casserole to cool slightly for about 10 minutes before serving warm. This helps it set and makes it easier to cut and serve.
Notes
- Be sure to drain the shredded zucchini well to avoid excess moisture in the casserole.
- You can adjust the amount of jalapeño or omit it for a milder flavor.
- Leftovers can be stored covered in the refrigerator for up to 3 days and reheated.
- For a gluten-free version, substitute with gluten-free corn muffin mix.
- Adding a bit of sour cream or cream cheese can make the casserole richer if desired.

