This Cheesy Baked Zucchini Gratin is undoubtedly one of those dishes that quickly become a regular part of your meal routine.

During a casual weekend coffee conversation, a close friend shared this recipe with me for the first time. It was one of those recipes, she informed me, that made veggies taste like comfort food without being heavy or unhealthy. I decided to try it as I always had courgette in my fridge.

I made it for my family over a nice Sunday meal last weekend, and to be honest, I didn’t anticipate this kind of response. The smell of garlic permeated the kitchen as soon as I took the baking dish out of the oven..

Anti-Inflammatory Cheesy Baked Zucchini Gratin

Description

This Anti-Inflammatory Cheesy Baked Zucchini Gratin is a healthy comfort-food recipe that combines fresh zucchini, anti-inflammatory herbs, heart-healthy olive oil, and melted cheese into a rich, satisfying side dish. Unlike traditional gratins loaded with heavy cream and refined ingredients, this version focuses on nutrient-dense vegetables and wholesome fats while still delivering a creamy, cheesy texture.

Perfect for anyone following a Mediterranean diet, anti-inflammatory meal plan, low-carb lifestyle, or gluten-free diet, this baked zucchini casserole is simple enough for weeknight dinners and elegant enough for holiday gatherings.

Why This Recipe Is Anti-Inflammatory

Several ingredients in this recipe may help support an anti-inflammatory eating pattern:

Zucchini – Rich in antioxidants and vitamin C.
Extra Virgin Olive Oil – Contains polyphenols known for anti-inflammatory properties.
Garlic – Contains sulfur compounds linked to immune support.
Turmeric – A powerful anti-inflammatory spice.
Black Pepper – Enhances turmeric absorption.
Parsley & Oregano – Rich in plant antioxidants.

Ingredients

Main Ingredients

4 medium zucchini, thinly sliced
2 tablespoons extra virgin olive oil
3 cloves garlic, minced
1 teaspoon dried oregano
1 tablespoon fresh parsley, chopped
½ teaspoon turmeric powder
¼ teaspoon black pepper
½ teaspoon sea salt

Cheese Layer

1 cup shredded mozzarella cheese
½ cup grated Parmesan cheese

Optional Healthy Additions

1 small onion, thinly sliced
1 tablespoon nutritional yeast
1 tablespoon chopped fresh basil
Pinch red pepper flakes

Equipment

8×8-inch baking dish
Mixing bowl
Colander
Sharp knife or mandoline

Instructions

Step 1: Prepare the Zucchini

Slice zucchini into ¼-inch rounds.
Place slices in a colander.
Sprinkle lightly with salt.
Let sit for 20 minutes to release excess moisture.
Pat dry with paper towels.

Step 2: Season

In a large bowl, combine:

Olive oil
Garlic
Oregano
Turmeric
Black pepper
Parsley

Add zucchini and toss until evenly coated.

Step 3: Assemble

Preheat oven to 375°F (190°C).
Lightly grease a baking dish.
Arrange zucchini slices upright or overlapping.
Sprinkle mozzarella evenly.
Top with Parmesan cheese.

Step 4: Bake

Bake uncovered for 25–30 minutes.
Switch to broil for 2–3 minutes until golden brown.
Allow to rest for 5 minutes before serving.

Preparation Time

Servings

Serves: 6

Serving Suggestions

This healthy zucchini gratin pairs beautifully with:

Protein Options

Grilled salmon
Herb-roasted chicken
Turkey meatballs
Lemon garlic shrimp
Baked cod

Vegetarian Pairings

Quinoa pilaf
Lentil patties
Chickpea salad
Roasted vegetables

Low-Carb Dinner Ideas

Grilled steak
Air fryer chicken thighs
Cauliflower rice
Garlic mushrooms

Delicious Variations

1. Mediterranean Zucchini Gratin

Add:

Sun-dried tomatoes
Kalamata olives
Feta cheese

2. Keto Zucchini Bake

Use:

Full-fat mozzarella
Heavy cream (optional)
Extra Parmesan

3. Vegan Version

Replace cheese with:

Cashew cheese sauce
Vegan mozzarella
Nutritional yeast

4. High-Protein Version

Add:

Shredded chicken
Ground turkey
Cottage cheese

5. Garlic Herb Gratin

Increase:

Garlic
Fresh thyme
Rosemary
Basil

Storage Instructions

Refrigerator

Store in an airtight container for up to 4 days.

Freezer

Freeze for up to 2 months.

Reheating

Bake at 350°F (175°C) for 10–15 minutes or until heated through.

Nutrition Information (Per Serving)

Approximate values:

Expert Tips

Avoid Watery Gratin

Always salt and drain zucchini before baking.

Better Browning

Use freshly grated cheese rather than pre-shredded varieties.

More Flavor

Roast zucchini for 10 minutes before adding cheese.

Extra Creaminess

Mix a few tablespoons of Greek yogurt into the zucchini before baking.

Frequently Asked Questions

Can I make zucchini gratin ahead of time?

Yes. Assemble up to 24 hours in advance and refrigerate until ready to bake.

Is zucchini gratin healthy?

Yes. Zucchini is low in calories and rich in vitamins, making it an excellent healthy side dish.

Can I make it without cheese?

Absolutely. Nutritional yeast or dairy-free cheese alternatives work well.

Why is my zucchini gratin watery?

Zucchini contains a high amount of water. Salting and draining helps prevent excess moisture.

Is this recipe keto-friendly?

Yes. The recipe is naturally low-carb and suitable for most ketogenic meal plans.

Health Benefits

Supports Heart Health

Olive oil and vegetables provide beneficial antioxidants and healthy fats.

Rich in Antioxidants

Zucchini, garlic, parsley, and turmeric contain compounds that help combat oxidative stress.

Low-Carb and Weight-Friendly

This recipe is filling while remaining relatively low in calories and carbohydrates.

Gluten-Free

Naturally free from gluten-containing ingredients.

Final Thoughts

This Anti-Inflammatory Cheesy Baked Zucchini Gratin delivers everything people love about comfort food while incorporating nutrient-rich ingredients associated with a healthy lifestyle. It’s creamy, cheesy, flavorful, low-carb, gluten-free, and versatile enough for family dinners, meal prep, holiday side dishes, or healthy entertaining. Whether you’re looking for an easy vegetable casserole, a Mediterranean-inspired side dish, or a healthy baked zucchini recipe, this gratin is a delicious addition to your recipe collection.