Name: Cheesy Scalloped Zucchini Recipe
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: American
Ingredients: 4 medium zucchinis, thinly sliced; 2 cups shredded sharp cheddar cheese; 1 cup shredded mozzarella cheese; 2 tablespoons unsalted butter; 2 tablespoons all-purpose flour; 2 cups whole milk; 2 cloves garlic, minced; 1/2 teaspoon salt; 1/4 teaspoon black pepper; 1/4 teaspoon dried thyme; 1/4 teaspoon dried oregano; 1/4 teaspoon paprika; 1/4 cup grated Parmesan cheese; 1/4 cup bread crumbs (optional)

Jump to Recipe· 3.9 from 4 reviews

If you’re looking for a dish that’s comfort food at its finest but still feels fresh and vibrant, this Cheesy Scalloped Zucchini Recipe is exactly what you want. It combines tender, thinly sliced zucchini layered in a creamy, cheesy sauce that bakes into golden, bubbling perfection. The cheesy crust on top provides just the right amount of crispiness to contrast the soft veggies underneath, making every bite a delicious celebration of flavor and texture. Whether you’re aiming to use up some summer zucchini or just want a cozy, satisfying side dish, this recipe feels like a warm hug in every serving.

Ingredients You’ll Need

The dish is a baked zucchini gratin in a white oval baking dish on a white marbled surface with a light gray cloth nearby. The gratin has multiple layers visible by the round zucchini slices on top, which are green with light yellow inside. The top layer is covered with melted, slightly browned cheese, showing a creamy white and light golden color with some brown crispy spots. Small green herb pieces are sprinkled evenly on top, adding texture and color contrast. The edges of the gratin have a slightly browned, crispy look. photo taken with an iphone --ar 4:5 --v 7

These simple ingredients come together effortlessly to make a dish that tastes rich and indulgent but still feels wholesome. Each item has a purpose, from the fresh zucchini adding moisture and brightness to the creamy sauce that binds everything with cheesy comfort.

Zucchini: Choose medium-sized zucchinis for even slices and a tender bite after baking.
Butter: Adds a smooth, rich base for the sauce and helps create that luscious texture.
All-purpose flour: The secret thickener that transforms milk into a creamy béchamel sauce.
Milk: Use whole milk for the best creamy consistency without heaviness.
Garlic powder: Delivers a gentle savory note that wonderfully complements the zucchini.
Salt and pepper: Essential for bringing out all the flavors in every layer.
Shredded cheddar cheese: Sharp and melty, the star cheese that creates an irresistible topping and creamy filling.
Parmesan cheese: Adds a nutty punch and an extra savory edge to the cheese mixture.
Breadcrumbs (optional): For a crunchy golden finish, sprinkling these on top is pure magic.

How to Make Cheesy Scalloped Zucchini Recipe

Step 1: Prepare the zucchini

Start by washing your zucchinis and slicing them into thin rounds—about 1/8 inch thick is perfect. This thickness ensures they cook evenly, becoming tender without turning mushy. Using a mandoline slicer can speed this step and keep the slices uniform, which helps create beautiful layers in the dish.

Step 2: Make the creamy cheese sauce

In a medium saucepan, melt the butter over medium heat until just bubbly. Whisk in the flour and keep stirring for about a minute to cook out the raw flavor—this is your thickening base. Slowly pour in the milk while whisking continuously to avoid lumps. Once the sauce thickens and coats the back of a spoon, remove it from the heat and stir in garlic powder, salt, pepper, plus two-thirds of your cheddar and all the Parmesan cheese. This sauce is luxuriously creamy and packed with cheesy goodness that binds all the zucchini slices together.

Step 3: Assemble the scalloped zucchini

In a buttered baking dish, arrange a single layer of zucchini slices, slightly overlapping. Pour a layer of cheese sauce over the zucchini, then repeat layering until all the zucchini and sauce are used up. Try to end with a layer of sauce on top for a rich finish.

Step 4: Add the cheese topping and bake

Sprinkle the remaining cheddar cheese evenly over the top. If using breadcrumbs, add them now for a perfectly crispy crust. Bake uncovered at 375°F (190°C) for about 30 to 35 minutes, until the top turns bubbly and golden brown. The kitchen will fill with an irresistible aroma that signals your cheesy scalloped zucchini is ready to enjoy.

How to Serve Cheesy Scalloped Zucchini Recipe

A white oval dish filled with a baked zucchini gratin, showing two main layers: a bottom layer of creamy, melted white cheese sauce, and a top layer of round, green zucchini slices partially covered with melted cheese that is golden brown in spots. Small green herb pieces are scattered evenly on top, adding a fresh contrast to the creamy white and green colors. The dish sits on a light blue cloth, with a white marbled surface beneath. photo taken with an iphone --ar 4:5 --v 7

Garnishes

A sprinkle of freshly chopped parsley or chives adds a pop of color and fresh herbal brightness that balances the richness beautifully. You can also add a tiny drizzle of olive oil or a pinch of smoked paprika for a subtle twist.

Side Dishes

This dish pairs wonderfully with grilled chicken or baked salmon, making for a wholesome, comforting meal. It’s equally fantastic alongside roasted meats or as part of a vegetarian spread, complementing a variety of proteins and grains.

Creative Ways to Present

For a fun presentation, try making individual servings in small ramekins, letting each person dig into their personal cheesy scalloped zucchini delight. Or, layer it in a clear glass casserole dish so everyone can admire the pretty, cheesy layers before diving in.

Make Ahead and Storage

Storing Leftovers

Once cooled, cover your leftovers tightly with plastic wrap or a lid and store in the refrigerator for up to 3 days. The flavors often deepen with time, making the next meal just as satisfying.

Freezing

If you want to keep it longer, this recipe freezes beautifully. Just cover tightly with foil and freeze in an airtight container for up to 2 months. Thaw overnight in the refrigerator before reheating.

Reheating

Reheat leftovers in a 350°F (175°C) oven until warmed through, about 15-20 minutes. This method helps maintain the crispy top and avoids sogginess that sometimes happens with microwaving.

FAQs

Can I use other cheeses instead of cheddar?

Absolutely! While cheddar provides a sharp, classic flavor, you can try Gruyère, Monterey Jack, or even a blend of mozzarella for a milder, creamier texture. Each cheese will bring its own character to the dish.

Is this recipe suitable for a low-carb diet?

Zucchini itself is low in carbs, but the inclusion of flour and breadcrumbs does add some carbs. For a low-carb version, you could use almond flour as a thickener and skip the breadcrumbs or use crushed pork rinds instead.

Can I make this Cheesy Scalloped Zucchini Recipe dairy-free?

Yes, you can substitute dairy ingredients with plant-based alternatives like almond or oat milk and use vegan butter and cheese. The sauce texture may vary slightly but will still be delicious and comforting.

How thin should the zucchini slices be?

Slicing the zucchini around 1/8 inch thin ensures they bake evenly and meld with the creamy sauce perfectly without becoming mushy or too stiff.

Can I add other vegetables to this dish?

Definitely! Thin slices of yellow squash, potatoes, or even some sautéed mushrooms can add depth and variety. Just be mindful of cooking times and moisture content when mixing veggies.

Final Thoughts

This Cheesy Scalloped Zucchini Recipe is one of those dishes that feels like a cozy secret worth sharing with everyone you care about. It’s simple to make, uses ingredients you probably already have, and delivers a comforting, cheesy delight that’s perfect any night of the week. I really hope you give it a try and enjoy every luscious bite as much as I do!