9 Zucchini Gratin Recipes

Published on April 7, 2021

gratin in glass casserole dish on picnic blanket — Photo: My Hot Southern Mess

Looking for a delicious and easy way to make your zucchini surplus disappear? Zucchini au gratin is a delicious and easy vegetable side dish that can be made ahead of time and reheated later. You're probably familiar with the classic potatoes au gratin, but you can make gratin with any vegetable of your choice. A gratin is a casserole-like dish that's traditionally topped with a cheese or breadcrumb topping, and baked and/or broiled in a shallow baking dish. It's a great way to sneak in veggies under a creamy, crumbly topping. Check out our collection of nine zucchini gratin recipes you'll want to add to your summer rotation.

01 of 10

Zucchini Pepper Jack Casserole

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gratin with cheese and bread crumb — Patches

A creamy mixture of zucchini, Monterey Jack cheese, and pepper jack cheese is topped with a seasoned bread crumb topping. "This is a great side dish and can easily be used as a main dish for a light summer dinner," says recipe creator glitzg.

02 of 10

Zucchini Gratin Casserole

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gratin in glass casserole dish on table — Carkitchi

Cheddar cheese, onion, and zucchini are layered and topped with a buttery bread crumb topping. Reviewer Elizabeth Abbott brought this dish to a potluck barbeque: "It was devoured and I have sent this recipe on to multiple people from the BBQ."

03 of 10

Tomato Zucchini Casserole

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Zucchini is second to none when it comes to fresh summer produce, except for maybe fresh summer tomatoes. This gratin includes both, in addition to Cheddar cheese, Parmesan cheese, onion, bread crumbs, garlic, and spices.

04 of 10

Cheesy Zucchini Gratin

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Gruyere cheese and panko bread crumbs put an upscale spin on this side dish. This is a great way to use up your summer bumper crop because it also features yellow squash.

22 Ways to Use Up Your Yellow Squash Bumper Crop

05 of 10

Cheesy Squash and Zucchini Casserole

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summer squash gratin with bread crumb topping on white plate — Melissa Goff

Boxed biscuit baking mix (such as Bisquick®) and crushed saltine crackers are the secret ingredients in this squash casserole.

19 Ways To Use Bisquick for Easy Cooking

06 of 10

Summer Squash Gratin

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Buttery cracker crumbs and Mexican cheese blend make the irresistible topping for this gratin. If you prefer the zucchini more al dente, reviewer daphneryan suggests cutting down on the saute time before the zucchini goes into the baking pan.

07 of 10

Carrot Zucchini Casserole

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zucchini gratin in casserole dish with serving spoon — Trusted Brands

Recipe creator edyegourmet describes this recipe as, "A nice departure from casserole recipes that call for cream soups or cheese." Horseradish is added to this casserole for a spicy kick.

08 of 10

Reinvented Zucchini Gratin

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slice of zucchini gratin with parmesan on plate next to watermelon wedges — Linda T

This gratin could easily be served as the main dish, thanks to the addition of ham. Honey and goat cheese add sophisticated flavor.

09 of 10

Zucchini Casserole I

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zucchini casserole with melted cheese up close — Seattle2Sydney

Shortcut ingredients like boxed stuffing mix and cream of chicken soup make this an easy casserole that comes together in just over an hour. Reviewer Michelle Williamson suggests adding mushrooms as well.

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