Zucchini gratin with cheese is a comforting, creamy, and flavorful dish that transforms simple ingredients into something truly special. Tender slices of zucchini are layered with a rich, cheesy sauce and baked until golden and bubbling. This dish is perfect as a side for roasted meats or fish, or as a satisfying vegetarian main course. It’s a wonderful way to highlight the natural sweetness of zucchini while adding the indulgent creaminess of cheese and cream.
The Essence of Zucchini Gratin
This gratin is a celebration of texture and flavor. The zucchini becomes tender and slightly caramelized as it bakes, while the cheese and cream create a luscious sauce that coats every layer. The top develops a golden crust that contrasts beautifully with the creamy interior. It’s a dish that feels both rustic and refined, equally at home on a weeknight dinner table or at a festive gathering.
Choosing the Right Ingredients
The success of a zucchini gratin depends on the freshness of the vegetables and the quality of the cheese.
Zucchini
Choose firm, medium-sized zucchinis with smooth, unblemished skin. Smaller zucchinis tend to be sweeter and less watery. Slice them evenly to ensure uniform cooking.
Cheese
A combination of cheeses gives the best flavor and texture. Gruyère or cheddar adds richness and depth, while Parmesan provides a sharp, nutty finish. Mozzarella can be added for extra meltiness.
Cream and Milk
A mix of heavy cream and milk creates a smooth, velvety sauce without being too heavy. The cream binds the ingredients together and enhances the flavor of the cheese.
Aromatics
Garlic, onions, and herbs such as thyme or basil add fragrance and complexity. A pinch of nutmeg or black pepper enhances the creaminess of the sauce.
Ingredients for 6–8 Servings
- 4 medium zucchinis (about 1 kg / 2.2 lb), thinly sliced
- 1 tablespoon olive oil
- 1 small onion, finely chopped
- 2 garlic cloves, minced
- 1 cup (250 ml) heavy cream
- ½ cup (125 ml) milk
- 1 teaspoon salt
- ½ teaspoon black pepper
- ¼ teaspoon ground nutmeg
- 1 cup (100 g) grated Gruyère or cheddar cheese
- ½ cup (50 g) grated Parmesan cheese
- 2 tablespoons breadcrumbs (optional, for topping)
- 1 tablespoon butter (for greasing the dish)
Preparing the Zucchini
- Preheat the oven: Set the oven to 200°C (400°F).
- Slice the zucchini: Cut the zucchinis into thin, even slices (about 3 mm thick).
- Sauté the aromatics: In a skillet, heat the olive oil over medium heat. Add the chopped onion and cook until soft and translucent, about 5 minutes. Add the garlic and cook for another minute. Remove from heat.
- Drain excess moisture: If the zucchini is very watery, sprinkle the slices with a little salt and let them sit for 10 minutes, then pat dry with paper towels. This prevents the gratin from becoming too watery.
Making the Creamy Sauce
- Combine cream and milk: In a saucepan, heat the cream and milk over medium heat until warm but not boiling.
- Season: Add salt, pepper, and nutmeg. Stir in half of the grated cheese until melted and smooth. The sauce should be creamy and slightly thickened.
Assembling the Zucchini Gratin
- Prepare the baking dish: Grease a large baking dish with butter.
- Layer the zucchini: Arrange half of the zucchini slices in the dish, slightly overlapping them. Spread half of the sautéed onion and garlic mixture over the top. Pour half of the cream sauce evenly over the layer.
- Repeat: Add the remaining zucchini, onions, and sauce.
- Top with cheese: Sprinkle the remaining cheese and breadcrumbs (if using) evenly over the top.
- Bake: Place the dish in the preheated oven and bake for 30–35 minutes, until the top is golden and bubbling.
Serving the Zucchini Gratin
Let the gratin rest for 5–10 minutes before serving. This allows the sauce to set slightly and makes it easier to serve. Garnish with fresh herbs such as parsley or thyme for a touch of color and freshness. Serve it as a side dish with roasted chicken, beef, or fish, or enjoy it as a vegetarian main course with a crisp green salad.
The Perfect Flavor Balance
Zucchini gratin with cheese is all about balance. The zucchini provides a light, fresh base, while the cheese and cream add richness and depth. The garlic and herbs bring aromatic notes that elevate the dish, and the golden crust adds a satisfying crunch. Each bite offers a perfect combination of creamy, tender, and crispy textures.
Variations and Add-Ins
This recipe is versatile and can be adapted to suit different tastes:
- With tomatoes: Add thin slices of tomato between the zucchini layers for a Mediterranean twist.
- With potatoes: Combine zucchini with thinly sliced potatoes for a heartier gratin.
- With herbs: Use basil, oregano, or rosemary for different flavor profiles.
- With bacon: Add crispy bacon bits for a smoky, savory touch.
- With breadcrumbs: Mix breadcrumbs with Parmesan for an extra-crispy topping.
- With vegan options: Use plant-based cream and cheese for a dairy-free version.
Tips for Success
- Use fresh zucchini: Older zucchinis can be watery and bland.
- Slice evenly: Uniform slices ensure even cooking.
- Drain excess moisture: This prevents the gratin from becoming soggy.
- Don’t overbake: The zucchini should be tender but not mushy.
- Let it rest: Allow the gratin to cool slightly before serving for the best texture.
Presentation Ideas
- Classic style: Serve directly from the baking dish for a rustic look.
- Individual servings: Bake in small ramekins for elegant, portioned servings.
- Garnished platter: Sprinkle with fresh herbs and a few shavings of Parmesan for a refined finish.
Pairing Suggestions
The creamy, cheesy flavors of this gratin pair beautifully with light, crisp beverages:
- Wine: A Chardonnay, Sauvignon Blanc, or Pinot Gris complements the richness.
- Red wine: A light Pinot Noir or Beaujolais works well for those who prefer red.
- Non-alcoholic: Sparkling water with lemon or apple cider balances the creaminess.
Nutritional Information (per serving)
- Calories: 260 kcal
- Protein: 10 g
- Fat: 20 g
- Carbohydrates: 8 g
Storing and Reheating
Leftover zucchini gratin can be stored in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 180°C (350°F) until warmed through and bubbly. Avoid microwaving for too long, as it can make the zucchini mushy. The gratin can also be frozen before baking; thaw overnight in the refrigerator and bake as directed.
The Flavor Experience
Every bite of zucchini gratin with cheese offers a comforting blend of textures and flavors. The zucchini is tender and slightly sweet, the sauce is creamy and rich, and the cheese topping adds a golden, savory finish. It’s a dish that feels indulgent yet light, perfect for any occasion.
Making It for Special Occasions
Zucchini gratin is ideal for holidays, dinner parties, or Sunday lunches. It’s elegant enough for a festive table yet simple enough for everyday meals. Its make-ahead nature makes entertaining stress-free—prepare it in advance, refrigerate, and bake just before serving.
Common Mistakes to Avoid
- Using watery zucchini: Drain or salt the slices before baking.
- Overcooking: The zucchini should be tender but not falling apart.
- Underseasoning: The sauce should be well-seasoned before baking.
- Skipping the resting time: The gratin needs time to set before serving.
- Using too much liquid: Too much cream can make the dish soupy.
A Dish for Every Season
Zucchini gratin with cheese is versatile enough for any time of year. In summer, it’s a great way to use fresh garden zucchini. In winter, it brings warmth and comfort to the table. It’s a dish that adapts effortlessly to any menu and occasion.
The Joy of Homemade Comfort
Cooking zucchini gratin with cheese is about more than just flavor—it’s about creating something warm, comforting, and satisfying from simple ingredients. It’s a reminder that great food doesn’t need to be complicated; it just needs care, balance, and a touch of love.
Conclusion
Zucchini gratin with cheese is a classic comfort dish that combines the freshness of zucchini with the richness of a creamy, cheesy sauce. Perfect for family dinners, festive occasions, or cozy nights in, it’s a recipe that brings warmth and flavor to any table. With its harmonious blend of textures and tastes, this gratin is more than just a side dish—it’s a celebration of simple, timeless cooking at its best.
