Summer Vegetable Gratin
The Summer Vegetable Gratin is a delightful dish that showcases the best of seasonal produce. This vibrant gratin combines colorful summer vegetables, baked to perfection under a golden layer of melted cheese. It’s an ideal side dish for any occasion, from casual family dinners to festive gatherings. With its simple preparation and fresh flavors, this recipe will quickly become a favorite in your kitchen.

Why You’ll Love This Summer Vegetable Gratin
This gratin is more than just a side dish; it’s a celebration of summer’s bounty.
- Healthy and Nutritious: Packed with fresh vegetables, this gratin is low in calories and high in vitamins.
- Easy to Prepare: With straightforward steps, even beginner cooks can master this recipe.
- Versatile Dish: Perfect for serving alongside grilled meats or as a vegetarian main course.
- Gluten-Free Option: This dish fits well into gluten-free diets, making it suitable for various guests.
- Colorful Presentation: The vibrant colors make it visually appealing on any dinner table.
Tools and Preparation
To create your delicious Summer Vegetable Gratin, you’ll need some essential kitchen tools.
Essential Tools and Equipment
- Baking dish
- Medium skillet
- Small bowl
- Knife
- Cutting board
Importance of Each Tool
- Baking dish: Ensures even cooking and allows for ample space for layering vegetables.
- Medium skillet: Perfect for sautéing leeks until they soften, enhancing the dish’s flavor.
- Knife: A sharp knife makes cutting vegetables easy and safe.
- Cutting board: Provides a stable surface for chopping vegetables efficiently.
Ingredients
A delicious Low FODMAP Summer Vegetable Gratin recipe. The perfect side dish with colourful summer vegetables topped with grated cheese.
Vegetables
- 13.7 oz | 390g zucchini (1 medium, or 1/2 green zucchini and 1/2 yellow zucchini)
- 5.29 oz | 150g eggplant (1 small)
- 8.4 oz | 238g common tomatoes (2 medium)
- 1.9 oz | 50g leek leaves (thinly sliced)
- 2 tbsp olive oil (plus more to drizzle)
- Salt and black pepper to taste
Tomato-Herb Broth
- 2 tbsp | 28g tomato paste (low FODMAP, no onions or garlic added)
- 1/2 cup | 75ml water
- 1 tsp dried oregano
- 1 tsp dried thyme (optional)
- 1 tsp salt
Topping
- 1/2 cup | 80g grated mozzarella cheese
- 1 tbsp fresh basil leaves (thinly chopped)
For Garnish
- 2 tablespoons fresh parsley, finely chopped

How to Make Summer Vegetable Gratin
Step 1: Preheat the Oven
Preheat your oven to 400° F | 200ºC. This ensures an even bake for your gratin.
Step 2: Sauté the Leeks
Heat olive oil in a medium skillet over medium heat.
* Add the leek leaves and cook while stirring until tender, about 3 to 5 minutes.
* Transfer the cooked leeks into an 8 x 8-inch | 20 x 20 cm baking dish, covering the bottom evenly.
Step 3: Prepare the Tomato-Herb Broth
In a small bowl:
* Stir together the water, tomato paste, herbs, and salt.
* Set this mixture aside for later use.
Step 4: Layer the Vegetables
Wash all vegetables thoroughly.
* Cut them into 1/4-inch | 0.5 cm rounds.
* Place them on top of the sautéed leeks in alternating rows until the dish is filled snugly but not overly packed.
Step 5: Add Broth and Bake
Strain the herb broth over the layered vegetables.
* Season with salt and black pepper.
* Drizzle with additional olive oil.
* Cover the baking dish with aluminum foil and bake for about 40 minutes until vegetables are tender.
Step 6: Cheese Topping
Remove the foil from the baking dish.
* Top with grated mozzarella cheese generously.
* Bake uncovered until golden and bubbly, approximately another 15 minutes.
Let sit for at least 10 minutes before adding fresh basil leaves and serving warm. Enjoy your delicious Summer Vegetable Gratin!
How to Serve Summer Vegetable Gratin
Serving Summer Vegetable Gratin can elevate any meal, making it a versatile option for lunch or dinner. Here are some creative ways to enjoy this delicious dish.
Pair with Grilled Proteins
- Chicken: Grilled chicken breasts or thighs complement the flavors perfectly.
- Fish: Lightly seasoned grilled fish adds a fresh touch alongside the gratin.
- Tofu: For a vegetarian option, marinated and grilled tofu works wonderfully.
Add Fresh Salad
- Mixed Greens: A simple mixed green salad with vinaigrette balances the richness of the gratin.
- Caprese Salad: Fresh mozzarella, tomatoes, and basil bring out similar flavors in the gratin.
Serve with Crusty Bread
- Baguette: A warm baguette is perfect for soaking up the tomato-herb broth.
- Garlic Bread: Adds an extra flavor dimension and pairs well with cheesy dishes.
How to Perfect Summer Vegetable Gratin
To ensure your Summer Vegetable Gratin turns out perfectly every time, keep these tips in mind.
- Choose Fresh Vegetables: Use seasonal vegetables for the best flavor and texture.
- Layer Evenly: Arrange vegetables snugly but without overstuffing to ensure even cooking.
- Cover While Baking: Covering with foil helps steam the vegetables until tender.
- Add Cheese at the Right Time: Top with cheese only after the vegetables have softened for a perfect melt.
- Let It Sit Before Serving: Allowing the dish to sit for 10 minutes enhances flavors and makes serving easier.

Best Side Dishes for Summer Vegetable Gratin
Pairing side dishes with your Summer Vegetable Gratin can create a delightful meal experience. Here are some great options to consider.
- Quinoa Salad: A light quinoa salad with herbs and lemon adds protein and freshness.
- Roasted Potatoes: Crispy roasted potatoes provide a satisfying crunch that complements the softness of the gratin.
- Steamed Asparagus: Bright green asparagus lightly steamed maintains a vibrant color and adds nutrients.
- Couscous Pilaf: Fluffy couscous mixed with spices offers a flavorful base alongside the gratin.
- Sautéed Spinach: Simple sautéed spinach enhances your meal’s nutrient profile while adding color.
- Herbed Rice: Flavorful rice cooked with herbs pairs beautifully, making it a hearty addition.
Common Mistakes to Avoid
When making a Summer Vegetable Gratin, it’s easy to overlook some important details that can affect the final dish. Here are some common mistakes to avoid.
- Not Prepping the Vegetables Properly: Ensure all vegetables are washed and sliced evenly. Uneven sizes may lead to uneven cooking.
- Skipping the Herb Broth: This broth adds essential flavor. Don’t skip it; make sure to mix it well before pouring over the vegetables.
- Crowding the Dish: Filling the baking dish too tightly can prevent even cooking. Arrange vegetables snugly but allow space for heat circulation.
- Underestimating Baking Time: Cooking times may vary based on your oven. Check for tenderness and adjust as necessary rather than relying solely on the timer.
- Neglecting Toppings: The cheese topping is crucial for texture and flavor. Use enough cheese for a golden, bubbly finish.
Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container.
- Consume within 3-5 days for best quality.
Freezing Instructions
- Allow to cool completely before freezing.
- Place in a freezer-safe container or wrap tightly in aluminum foil.
- Use within 2-3 months for optimal taste.
Reheating Instructions
- Oven: Preheat to 350°F | 175°C. Cover with foil and heat until warmed through, about 20-25 minutes.
- Microwave: Use a microwave-safe dish and cover loosely. Heat in short bursts, stirring occasionally, until hot.
- Stovetop: Place in a skillet over medium heat, adding a splash of water if needed. Stir occasionally until heated through.

Frequently Asked Questions
Here are some common questions about making Summer Vegetable Gratin.
Can I use other vegetables in my Summer Vegetable Gratin?
You can definitely customize your gratin! Feel free to add bell peppers, squash, or any seasonal veggies you enjoy.
How do I make a vegan Summer Vegetable Gratin?
Replace mozzarella cheese with a vegan cheese alternative or nutritional yeast for a dairy-free option while maintaining flavor.
Can I prepare the Summer Vegetable Gratin ahead of time?
Yes! You can assemble it a day before and store it in the fridge. Just bake when you’re ready to serve.
What should I serve with this Summer Vegetable Gratin?
This dish pairs well with grilled meats or as part of a vegetarian meal alongside salads or crusty bread.
Final Thoughts
The Summer Vegetable Gratin is not only vibrant and delicious but also versatile. With its colorful layers of fresh vegetables topped with gooey cheese, this dish makes for an excellent side or main course. Feel free to customize with your favorite ingredients or herbs to suit your palate!
Summer Vegetable Gratin
- Total Time: 1 hour 10 minutes
- Yield: Serves 8
Description
The Summer Vegetable Gratin is a vibrant celebration of fresh seasonal produce, offering a delightful combination of zucchini, eggplant, tomatoes, and leeks, all topped with a golden layer of melted mozzarella cheese. This easy-to-make dish is perfect as a side for grilled meats or as a satisfying vegetarian main course. Its colorful presentation makes it an eye-catching addition to any meal, while the healthy ingredients provide a nutritious boost. With simple preparation steps and versatile serving options, this gratin will quickly become a beloved recipe in your kitchen.
Ingredients
- 1 medium zucchini (390g)
- 1 small eggplant (150g)
- 2 medium tomatoes (238g)
- 50g leek leaves
- 2 tbsp olive oil
- 2 tbsp tomato paste
- 1/2 cup water
- 1 tsp dried oregano
- 80g grated mozzarella cheese
- Fresh basil and parsley for garnish
Instructions
- Preheat oven to 400°F (200°C).
- Sauté leek leaves in olive oil until tender. Spread in a baking dish.
- Mix water, tomato paste, herbs, and salt in a bowl.
- Slice vegetables into rounds and layer over leeks.
- Pour the broth mixture over vegetables and season with salt and pepper.
- Cover with foil and bake for 40 minutes; then add cheese on top and bake uncovered for another 15 minutes until golden.
- Prep Time: 15 minutes
- Cook Time: 55 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: Mediterranean
Nutrition
- Serving Size: 1 serving
- Calories: 145
- Sugar: 3g
- Sodium: 240mg
- Fat: 7g
- Saturated Fat: 2g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 16g
- Fiber: 4g
- Protein: 5g
- Cholesterol: 10mg






