Cheesy Zucchini Casserole is a comforting baked dish featuring tender zucchini, onions, garlic, herbs, eggs, and melted mozzarella cheese. This easy family-friendly recipe makes a delicious vegetarian main course or hearty side 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.