This cheesy zucchini casserole is a delightful dish that combines the fresh flavors of zucchini with the rich, comforting taste of cheddar cheese. Perfect for a family dinner or a potluck, this casserole is easy to prepare and sure to please even the pickiest eaters.
Most of the ingredients in this recipe are common pantry staples. However, you may need to ensure you have fresh zucchini on hand, as well as shredded cheddar cheese. If you don't usually keep breadcrumbs in your pantry, you can find them in the baking aisle of your supermarket.

Ingredients for Cheesy Zucchini Casserole Recipe
Zucchini: Fresh, sliced zucchini adds a tender, slightly sweet flavor to the casserole.
Cheddar cheese: Shredded cheddar cheese provides a rich, creamy texture and a sharp, tangy taste.
Breadcrumbs: Breadcrumbs help to create a crispy, golden-brown topping.
Milk: Milk adds moisture and helps to bind the ingredients together.
Butter: Melted butter enhances the flavor and richness of the dish.
Salt: Salt brings out the natural flavors of the ingredients.
Black pepper: Black pepper adds a touch of heat and depth to the casserole.
Technique Tip for Making This Casserole
When preparing the zucchini, make sure to slice them evenly to ensure uniform cooking. A mandoline slicer can be very helpful for this task. Additionally, to prevent the casserole from becoming too watery, you can lightly salt the zucchini slices and let them sit for about 10 minutes before patting them dry with a paper towel. This will draw out excess moisture, resulting in a firmer and more flavorful dish.
Suggested Side Dishes
Alternative Ingredients
zucchini - Substitute with yellow squash: Yellow squash has a similar texture and mild flavor, making it a great alternative.
shredded cheddar cheese - Substitute with mozzarella cheese: Mozzarella melts well and provides a creamy texture, though it has a milder flavor.
breadcrumbs - Substitute with crushed cornflakes: Crushed cornflakes add a crunchy texture and can be used as a gluten-free option.
milk - Substitute with unsweetened almond milk: Unsweetened almond milk provides a similar consistency and is a good dairy-free alternative.
melted butter - Substitute with olive oil: Olive oil offers a healthier fat option and adds a subtle flavor.
salt - Substitute with soy sauce: Soy sauce adds a salty flavor along with a bit of umami, enhancing the overall taste.
black pepper - Substitute with white pepper: White pepper provides a similar heat but with a slightly different flavor profile, often used in lighter-colored dishes.
Alternative Recipes Similar to This Casserole
How to Store or Freeze Your Casserole
Allow the cheesy zucchini casserole to cool completely before storing. This helps prevent condensation, which can make the dish soggy.
Transfer the casserole to an airtight container. If you don't have one large enough, you can use multiple smaller containers or cover the baking dish tightly with plastic wrap or aluminum foil.
Store the container in the refrigerator. The casserole will keep well for up to 3-4 days.
For freezing, cut the cooled casserole into individual portions. This makes it easier to reheat only what you need.
Wrap each portion tightly in plastic wrap, then place them in a freezer-safe bag or container. Label with the date to keep track of freshness.
The casserole can be frozen for up to 2-3 months. For best results, consume within this timeframe to maintain optimal flavor and texture.
To reheat from the refrigerator, preheat your oven to 350°F (175°C). Place the casserole in an oven-safe dish and cover with foil. Heat for about 20-25 minutes, or until warmed through.
If reheating from frozen, it's best to thaw the casserole in the refrigerator overnight. Once thawed, follow the same reheating instructions as above.
For a quicker option, you can reheat individual portions in the microwave. Place the portion on a microwave-safe plate, cover with a microwave-safe lid or another plate, and heat on medium power for 2-3 minutes, or until hot.
To maintain the crispy topping, you can finish reheating in the oven or under the broiler for a few minutes after microwaving.
How to Reheat Leftovers
Oven Method: Preheat your oven to 350°F (175°C). Place the cheesy zucchini casserole in an oven-safe dish. Cover it with aluminum foil to prevent it from drying out. Heat for about 20-25 minutes, or until the casserole is warmed through and the cheese is melty.
Microwave Method: Transfer a portion of the casserole to a microwave-safe plate. Cover it with a microwave-safe lid or another plate to retain moisture. Heat on medium power for 2-3 minutes, checking halfway through to ensure even heating. Stir if necessary and continue heating until hot.
Stovetop Method: Place the casserole in a non-stick skillet over medium heat. Add a splash of milk or broth to keep it from drying out. Cover the skillet with a lid and heat for about 10 minutes, stirring occasionally, until the casserole is heated through.
Air Fryer Method: Preheat your air fryer to 350°F (175°C). Place the casserole in an air fryer-safe dish. Heat for about 10-15 minutes, checking halfway through to ensure it doesn't overcook. This method will give the breadcrumbs a nice crispy texture.
Toaster Oven Method: Preheat your toaster oven to 350°F (175°C). Place the casserole in a toaster oven-safe dish. Cover with aluminum foil and heat for about 15-20 minutes, or until the casserole is hot and the cheese is bubbly.
Essential Tools for This Recipe
Oven: Used to bake the casserole at the specified temperature of 375°F (190°C).
Mixing bowl: Used to combine the sliced zucchini, shredded cheddar cheese, breadcrumbs, milk, melted butter, salt, and black pepper.
Baking dish: Used to transfer the mixture into and spread it out evenly for baking.
Measuring cups: Used to measure the ingredients such as zucchini, cheddar cheese, breadcrumbs, and milk accurately.
Measuring spoons: Used to measure the melted butter, salt, and black pepper accurately.
Knife: Used to slice the zucchini into the required size.
Cutting board: Used as a surface to safely slice the zucchini.
Spatula: Used to mix the ingredients together in the mixing bowl and to spread the mixture evenly in the baking dish.
Oven mitts: Used to safely handle the hot baking dish when removing it from the oven.
Cooling rack: Used to let the casserole cool for a few minutes before serving.
Time-Saving Tips for Making This Casserole
Pre-slice zucchini: Slice the zucchini in advance and store in the fridge to save time during preparation.
Use pre-shredded cheese: Opt for pre-shredded cheddar cheese to cut down on prep time.
Ready-made breadcrumbs: Use store-bought breadcrumbs instead of making your own.
Microwave zucchini: Partially cook the zucchini in the microwave for a few minutes to reduce baking time.
Mix in one bowl: Combine all ingredients in a single mixing bowl to minimize cleanup.

Cheesy Zucchini Casserole Recipe
Ingredients
Main Ingredients
- 4 cups Zucchini, sliced
- 1 cup Shredded Cheddar Cheese
- 1 cup Breadcrumbs
- 1 cup Milk
- 2 tablespoon Butter melted
- 1 teaspoon Salt
- 1 teaspoon Black Pepper
Instructions
- Preheat your oven to 375°F (190°C).
- In a mixing bowl, combine the sliced zucchini, shredded cheddar cheese, breadcrumbs, milk, melted butter, salt, and black pepper.
- Transfer the mixture to a baking dish and spread it out evenly.
- Bake in the preheated oven for 30 minutes, or until the top is golden brown and the zucchini is tender.
- Let it cool for a few minutes before serving.
Nutritional Value
Keywords
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