Cheesy Zucchini Casserole
Equipment
- Casserole dish
- Large mixing bowl
- oven
- skillet
- Stovetop
Ingredients
- 1 tablespoon butter
- 2⅔ cups zucchini thinly sliced
- ⅓ cup onion chopped
- 1½ garlic cloves minced
- 1⅓ large eggs lightly beaten
- 4 oz 115 g mozzarella cheese, grated
- ⅔ teaspoon Dijon mustard
- ⅔ teaspoon dried oregano
- ⅔ teaspoon dried basil
- ⅔ teaspoon dried parsley
- Salt to taste
- Black pepper to taste
Instructions
- Preheat the oven to 350°F (175°C).
- Grease a medium casserole dish.
- Melt the butter in a large skillet over medium heat.
- Add the sliced zucchini and chopped onion. Cook for 8 to 10 minutes, stirring occasionally, until the vegetables are just tender.
- Stir in the garlic, oregano, basil, parsley, salt, and black pepper. Remove from the heat.
- In a large mixing bowl, whisk together the eggs, grated mozzarella, and Dijon mustard until well combined.
- Fold the cooked zucchini mixture into the egg and cheese mixture.
- Transfer the mixture to the prepared casserole dish and spread it into an even layer.
- Bake uncovered for about 30 minutes, or until the casserole is set and the top is lightly golden.
- Allow the casserole to rest for 5 minutes before serving.
Notes & Wine Advice
Recipe Notes
Slice the zucchini evenly so it cooks at the same rate and keeps a pleasant texture. Let the casserole rest for a few minutes before serving to make slicing easier. Add a little grated Parmesan over the top before baking for an extra golden crust. Serve with crusty bread, a fresh green salad, or grilled chicken for a complete meal.Wine Advice
A fruity Pinot Noir complements the melted mozzarella and herbs without overpowering the vegetables. A crisp Sauvignon Blanc is another excellent choice with this light Mediterranean-style casserole.Nutrition values
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About This Recipe
Cheesy Zucchini Casserole is a comforting baked dish that transforms simple vegetables into a satisfying family meal. Tender zucchini and sweet onions are gently sautéed before being combined with creamy mozzarella, eggs, Dijon mustard, and aromatic herbs. As it bakes, the cheese melts into a golden topping while the vegetables remain soft and flavorful. This easy casserole is perfect as a vegetarian main course or served alongside grilled meats for a complete dinner.
Why You’ll Love Cheesy Zucchini Casserole
This zucchini mozzarella casserole is made with everyday ingredients and comes together with very little effort. The fresh herbs and Dijon mustard add extra flavor without overpowering the delicate zucchini, while the mozzarella creates a creamy, golden finish. It’s an excellent way to use an abundance of summer zucchini and is just as suitable for weeknight dinners as it is for family gatherings. Browse our Casserole Recipes, Cheese Recipes, Vegetable Recipes, Greek Recipes, and Vegetarian Recipes for more inspiration.
How To Make Zucchini Mozzarella Casserole
Cook the zucchini and onions until just tender before combining them with eggs, mozzarella, Dijon mustard, garlic, and herbs. Transfer everything to a casserole dish and bake until the top is beautifully golden and the center is set. Cheesy Zucchini Casserole only needs a few minutes to rest before serving, allowing the flavors to settle and making it easier to slice.
Serving Cheesy Zucchini Casserole
Serve this zucchini mozzarella casserole with grilled chicken, roasted lamb, baked fish, or crusty bread and a crisp green salad. It also works wonderfully as part of a Mediterranean-inspired buffet or as a hearty meat-free dinner.
Storage Tips
Store leftover Cheesy Zucchini Casserole in an airtight container in the refrigerator for up to three days. Reheat gently in the oven until warmed through. For additional food storage guidance, visit the FDA Food Safety website.
This easy casserole proves that fresh zucchini, melted mozzarella, and simple herbs can create a wonderfully satisfying family meal. Its comforting flavor and effortless preparation make it a recipe you’ll enjoy throughout zucchini season.