Cheddar Zucchini Egg Casserole
Equipment
- medium mixing bowl
- oven
- Steamer basket
- Whisk
Ingredients
For the Zucchini
- 2 medium Zucchini peeled and cubed
- 1 teaspoon Unsalted Butter for greasing
For the Egg and Cheese Mixture
- 2 large Eggs lightly beaten
- ¼ cup Whole Milk
- 1 teaspoon Baking Powder
- 2 tablespoons All-Purpose Flour
- 1⅓ cups Cheddar Cheese grated
- ⅓ cup Onion chopped
- 3 tablespoons Green Bell Pepper chopped
- 2 cloves Garlic minced
- ½ teaspoon Kosher Salt
- ¼ teaspoon Black Pepper freshly ground
Instructions
Prepare the Zucchini
- Preheat the oven to 350°F (175°C).
- Grease a baking dish with the butter.
- Steam the zucchini for approximately 8 minutes until almost tender.
- Drain the zucchini thoroughly.
- Let the zucchini cool for approximately 5 minutes.
Prepare the Egg and Cheese Mixture
- Place the lightly beaten eggs in a medium mixing bowl.
- Add the milk, baking powder, and flour.
- Whisk until smooth and no flour lumps remain.
- Add the grated cheddar, onion, green pepper, garlic, kosher salt, and black pepper.
- Stir until evenly combined.
Assemble and Bake the Casserole
- Add the cooled zucchini to the egg and cheese mixture.
- Fold gently until the zucchini is evenly coated.
- Pour the mixture into the prepared baking dish.
- Spread the mixture into an even layer.
- Bake uncovered for approximately 30 minutes until the surface is golden and the centre is set.
- Remove the casserole from the oven.
- Let it rest for 5 minutes before cutting and serving.
Notes & Wine Advice
Serving Suggestions
Serve the casserole warm with a green salad, roasted potatoes, crusty bread, or sliced tomatoes. Smaller portions work well alongside grilled chicken or baked fish. For a vegetarian zucchini meal, pair it with our Cottage Cheese Zucchini Boats.Recipe Notes
Steam the zucchini only until almost tender because it continues cooking in the oven. Drain it thoroughly and allow it to cool before adding it to the egg mixture. Excess moisture can prevent the centre from setting and make the casserole watery.Variations
Replace cheddar with Monterey Jack, mozzarella, Gouda, or Parmesan. Add chopped mushrooms, spinach, roasted peppers, sweetcorn, or fresh herbs. Gluten-free all-purpose flour can replace regular flour when preparing a gluten-free version.Storage
Refrigerate leftovers in an airtight container for up to three days. Reheat individual portions in the oven, air fryer, or microwave until hot throughout. The casserole can also be served chilled or at room temperature.Wine Advice
A crisp Sauvignon Blanc balances the richness of the cheddar and eggs. A chilled Pinot Grigio is another refreshing choice for the mild zucchini and green pepper.Nutrition values
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About Cheddar Zucchini Egg Casserole
Cheddar Zucchini Egg Casserole is a comforting vegetarian bake made with tender zucchini, eggs, milk, sharp cheddar, onion, green pepper, and garlic. This cheesy zucchini bake has a soft vegetable centre and a lightly golden surface. It is substantial enough for a main course but can also be served in smaller portions as a side dish.
The recipe is particularly useful during summer when garden zucchini is plentiful. Steaming the vegetable before baking ensures it becomes tender without requiring a long oven time. Eggs, flour, and baking powder bind the ingredients together, while cheddar contributes richness and savoury flavour.
Preparing Cheddar Zucchini Egg Casserole
Peel the zucchini and cut it into evenly sized cubes. Similar-sized pieces cook at approximately the same rate and distribute more evenly throughout the casserole. Steam the cubes until almost tender but not completely soft because they will continue cooking in the oven.
Drain the zucchini thoroughly after steaming. Zucchini naturally contains a large amount of water, and excess moisture can make the filling loose. Allow the cubes to cool for approximately 5 minutes so they do not begin setting the eggs when the ingredients are combined.
Grease the baking dish before adding the mixture. This prevents the egg and cheese from sticking around the edges and makes the finished portions easier to remove.
Mixing the Cheesy Zucchini Bake
Whisk the eggs, milk, baking powder, and flour together before adding the vegetables and cheese. Mixing these ingredients first helps eliminate flour lumps and distributes the baking powder throughout the casserole. The small quantity of baking powder gives the egg filling a slightly lighter texture.
Add the grated cheddar, chopped onion, green pepper, garlic, salt, and black pepper. Sharp cheddar provides the strongest flavour, but mild or mature cheese can be selected according to preference. Grating the cheese from a block usually produces smoother melting than packaged grated cheese.
Fold in the cooled zucchini gently to avoid breaking the cubes. Transfer everything to the prepared baking dish and spread the mixture evenly so the centre and edges cook at the same rate.
Checking the Casserole
Bake the casserole uncovered until the surface is golden and the centre feels firm. Insert a clean knife into the middle when you are uncertain. It should come out without liquid egg mixture clinging to it.
Allow the finished bake to rest for approximately 5 minutes before cutting. The filling continues to firm slightly as it rests, producing neater portions. Cutting it immediately may cause the warm centre to spread.
Serving Ideas and Variations
Serve the casserole with a green salad, sliced tomatoes, roasted potatoes, or crusty bread. It also works as a brunch dish alongside fresh fruit. For a larger vegetarian meal, combine it with our Cottage Cheese Zucchini Boats.
Mushrooms, spinach, roasted peppers, sweetcorn, or fresh herbs can be added in moderate quantities. Cook and drain vegetables containing considerable moisture before using them. Monterey Jack, mozzarella, Gouda, or Parmesan can replace some or all of the cheddar.
Storage and Food Safety
Cool leftover casserole promptly and transfer it to an airtight container. Refrigerate it for up to three days. Reheat individual portions in the oven, air fryer, or microwave until hot throughout. Avoid prolonged reheating because eggs can become firm and dry.
Follow current FDA safe food-handling guidance when preparing eggs and dairy products and when cooling, storing, or reheating cooked dishes.
Tender vegetables, sharp cheese, and a savoury egg filling make Cheddar Zucchini Egg Casserole a practical choice for brunch, lunch, or family dinner.