21 Easy Zucchini Casseroles You’ll Love

Updated on Jul. 09, 2025

Lighten up your next casserole dish with garden-fresh summer squash. These zucchini casserole recipes are packed with fresh flavor and are perfect for make-ahead breakfasts, family dinners or potluck sides.

Zucchini brings just the right balance to a casserole. It’s mild in flavor, soft in texture and ready to take on any ingredients thrown its way. Our best zucchini recipes showcase its ability to blend easily into cheesy layers, adding moisture and standing up to spice and seasoning without being overpowering. As a bonus, zucchini casseroles can be made ahead of time and generally freeze well, so they’re fantastic for busy weeknights, casual potlucks or anytime there’s a few extra squash in the fridge.

This collection brings together a range of baked zucchini options, from cheesy bakes with crispy toppings to lightened-up versions of your favorite comfort classics. The recipes were chosen for their smart prep, strong ratings and ingredient flexibility. Some feature vegetarian ingredients, while others showcase sausage or chicken. You’ll also find gluten-free zucchini recipes and low-carb casserole options if you’re not in the mood for pasta. No matter the combination, each dish proves that zucchini isn’t just a filler—it’s why you’re going back for seconds.

1/21

Zucchini Pizza Casserole

Total Time 1 hour
Servings 8 servings
From the Recipe Creator: My husband has a hearty appetite, our two kids never tire of pizza, and I grow lots of zucchini. So this tasty tomato casserole is absolutely tops with us throughout the entire year. Once you've tried the recipe, you may even decide to grow more zucchini in your own garden next summer! —Lynn Bernstetter, White Bear Lake, Minnesota
Nutrition Facts: 1 cup: 315 calories, 20g fat (10g saturated fat), 119mg cholesterol, 855mg sodium, 10g carbohydrate (4g sugars, 2g fiber), 25g protein.
2/21

Yellow Squash and Zucchini Casserole

Total Time 35 min
Servings 6 servings
From the Recipe Creator: This yellow squash and zucchini casserole is the perfect way to use up an abundance of summer squash. It's easy to prepare, takes just 10 minutes in the oven and serves up bubbly and delicious. —Jonathan Lawler, Greenfield, Indiana
Nutrition Facts: 1 cup: 203 calories, 14g fat (8g saturated fat), 39mg cholesterol, 357mg sodium, 15g carbohydrate (4g sugars, 2g fiber), 6g protein.
3/21

Zucchini Tomato Casserole

Total Time 35 min
Servings 8 servings
From the Recipe Creator: Even people who don’t like zucchini can’t seem to get enough of this full-flavored side dish. I always bring it to our family gatherings and potlucks because it goes well with any entree. —Cathy Johnston, Ranchester, Wyoming
Nutrition Facts: 1 cup: 224 calories, 16g fat (9g saturated fat), 90mg cholesterol, 527mg sodium, 12g carbohydrate (6g sugars, 2g fiber), 10g protein.
4/21

Vegetable Strata

Total Time 1 hour 55 min
Servings 12 servings
From the Recipe Creator: We always serve food at our Bunco games, and since one of us is a vegetarian we like to make fun meatless dishes we can all enjoy. This strata can easily be doubled and tastes fantastic hot or at room temperature. —Doris Mancini, Port Orchard, Washington
Nutrition Facts: 1 piece: 677 calories, 36g fat (15g saturated fat), 244mg cholesterol, 940mg sodium, 55g carbohydrate (8g sugars, 5g fiber), 35g protein.
5/21

Zucchini Lasagna

Total Time 1 hour
Servings 6 servings
From the Recipe Creator: We plant zucchini every year and always seem to have more than we can use! This hearty zucchini lasagna is a delicious way to use an abundant crop. —Charlotte McDaniel, Williamsville, Illinois
Nutrition Facts: 1 serving: 273 calories, 13g fat (5g saturated fat), 92mg cholesterol, 725mg sodium, 14g carbohydrate (6g sugars, 3g fiber), 27g protein. Diabetic Exchanges: 3 lean meat, 1 starch, 1 fat.
6/21

Zucchini Casserole

Total Time 50 min
Servings 6 servings
From the Recipe Creator: This comforting casserole is similar to a savory bread pudding, and the perfect way to use up a bumper crop of zucchini from the garden. It's wonderful as a summery side dish or as the main attraction for brunch. —Taste of Home Test Kitchen
Nutrition Facts: 1 cup: 289 calories, 21g fat (12g saturated fat), 115mg cholesterol, 756mg sodium, 15g carbohydrate (5g sugars, 2g fiber), 11g protein.
7/21

Zucchini and Cheese Casserole

Total Time 45 min
Servings 6 servings
From the Recipe Creator: My daughter and I love zucchini, and this casserole uses plenty for a hearty fall side dish. For extra color, I add fresh diced tomatoes. —Rachelle Stratton, Rock Springs, Wyoming
Nutrition Facts: 0.750 cup: 260 calories, 15g fat (10g saturated fat), 99mg cholesterol, 778mg sodium, 23g carbohydrate (5g sugars, 2g fiber), 9g protein.
8/21

Summer Squash Mushroom Casserole

Total Time 45 min
Servings 10 servings
From the Recipe Creator: This rich, creamy squash-and-zucchini casserole with a crunchy topping makes a wonderful dish to take to summer potlucks and picnics, or to pair up with a wide variety of entrees. You'll love the buttery flavor of these 'comfort veggies!' —Jennifer Wallace, Canal Winchester, Ohio

Nutrition Facts: 2/3 cup: 234 calories, 16g fat (8g saturated fat), 36mg cholesterol, 564mg sodium, 14g carbohydrate (4g sugars, 2g fiber), 8g protein.
9/21

Chicken Zucchini Casserole

Total Time 1 hour 5 min
Servings 6 servings
From the Recipe Creator: A co-worker shared this chicken zucchini casserole recipe that was originally her grandmother's. When I make it, I use precooked chicken from the grocery store and fresh zucchini my neighbor gives me from his garden. —Bev Dutro, Dayton, Ohio
Nutrition Facts: 1 cup: 481 calories, 31g fat (18g saturated fat), 115mg cholesterol, 1174mg sodium, 27g carbohydrate (6g sugars, 2g fiber), 21g protein.

Here’s the best way to store zucchini for all of your favorite zucchini recipes.

10/21

Cheesy Vegetable Egg Dish

Total Time 55 min
Servings 10 servings
From the Recipe Creator: I'm a cook at a Bible camp, and this is one of my most popular recipes. Everyone who tries it raves about it. The one that touched me the most was when a 10-year-old boy asked me for the recipe so he could have his mom make it at home. —Elsie Campbell, Dulzura, California
Nutrition Facts: 1 piece: 407 calories, 30g fat (17g saturated fat), 287mg cholesterol, 759mg sodium, 10g carbohydrate (4g sugars, 1g fiber), 24g protein.
11/21

Basil Corn & Tomato Bake

Total Time 1 hour 15 min
Servings 10 servings
From the Recipe Creator: I think this is the ultimate dish to make when sweet Jersey corn is in season. Combined with tomatoes, zucchini and basil, it makes for a spectacular side for brunch, lunch or dinner. —Erin Chilcoat, Central Islip, New York
Nutrition Facts: 3/4 cup: 131 calories, 4g fat (1g saturated fat), 47mg cholesterol, 299mg sodium, 20g carbohydrate (5g sugars, 3g fiber), 6g protein. Diabetic Exchanges: 1 starch, 1/2 fat.
12/21

Veggie Sausage Strata

Total Time 1 hour 35 min
Servings 12 servings
From the Recipe Creator: As a retired home economics teacher, I've made quite a few recipes through the years. This hearty casserole is a favorite in my family. —Dorothy Erickson, Blue Eye, Missouri
Nutrition Facts: 1 piece: 501 calories, 34g fat (14g saturated fat), 204mg cholesterol, 1236mg sodium, 22g carbohydrate (5g sugars, 2g fiber), 27g protein.
13/21

Calico Squash Casserole

Total Time 50 min
Servings 8 servings
From the Recipe Creator: I love to try out different recipes for the squash I grow in my garden. It's fun to bring this beautiful casserole to potlucks because I know it'll go fast. Even the little ones like it. —Lucille Terry, Frankfort, Kentucky
Nutrition Facts: 1 cup: 439 calories, 34g fat (13g saturated fat), 54mg cholesterol, 1055mg sodium, 27g carbohydrate (6g sugars, 3g fiber), 7g protein.
14/21

Herbed Harvest Vegetable Casserole

Total Time 1 hour 55 min
Servings 8 servings
From the Recipe Creator: I belong to a cooking club, so I try a lot of new recipes. This one has become one of my favorites. I hope your family enjoys it as much as mine does! —Netty Dyck, St. Catharines, Ontario
Nutrition Facts: 1 each: 206 calories, 10g fat (6g saturated fat), 28mg cholesterol, 105mg sodium, 24g carbohydrate (6g sugars, 4g fiber), 7g protein.
15/21

Savory Zucchini Bread Pudding

Total Time 1 hour 5 min
Servings 12 servings
From the Recipe Creator: I have been serving this dish for years and always receive compliments on it. If you don't have day-old bread in your pantry, simply slice fresh bread and bake it at 300° for 10 minutes. —Mary Ann Dell, Phoenixville, Pennsylvania
Nutrition Facts: 3/4 cup: 182 calories, 10g fat (6g saturated fat), 58mg cholesterol, 408mg sodium, 20g carbohydrate (5g sugars, 2g fiber), 5g protein.
16/21

Roasted Vegetable Strata

Total Time 1 hour 35 min
Servings 8 servings
From the Recipe Creator: With the abundance of zucchini my family has in the fall, this is a perfect way to use some of what we have. Cheesy and rich, this warm, classic breakfast dish is sure to please! —Colleen Doucette, Truro, Nova Scotia
Nutrition Facts: 1 piece: 349 calories, 14g fat (5g saturated fat), 154mg cholesterol, 642mg sodium, 40g carbohydrate (9g sugars, 4g fiber), 17g protein. Diabetic Exchanges: 2 starch, 1 vegetable, 1 medium-fat meat, 1 fat.
17/21

Greek Zucchini & Feta Bake

Total Time 1 hour 10 min
Servings 12 servings
From the Recipe Creator: Looking to highlight your meal with something light, indulgent and golden on top? Turn to this Greek-style egg bake. —Gabriela Stefanescu, Webster, Texas
Nutrition Facts: 1 piece: 231 calories, 13g fat (7g saturated fat), 128mg cholesterol, 583mg sodium, 16g carbohydrate (6g sugars, 2g fiber), 12g protein.
18/21

Dilly Zucchini Casserole

Total Time 40 min
Servings 5 servings
From the Recipe Creator: Whenever I take this timesaving side-dish casserole to a potluck, I seldom bring any home, and folks often ask for the recipe. If I have fresh dill, I'll substitute a couple tablespoons for the dill weed. —Esther Kilborn, Bridgton, Maine
Nutrition Facts: 1 slice: 410 calories, 32g fat (7g saturated fat), 176mg cholesterol, 978mg sodium, 21g carbohydrate (4g sugars, 2g fiber), 11g protein.
19/21

Keto Breakfast Casserole

Total Time 50 min
Servings 12 servings
From the Recipe Creator: Start your day with this high-protein, low-carb and keto-friendly breakfast casserole. Stuffed with ingredients like bacon, sausage, zucchini, red peppers and Gruyere cheese, it’s a meal brimming with big flavors. —Lauren Habermehl, Pewaukee, Wisconsin
Nutrition Facts: 1 piece: 288 calories, 23g fat (11g saturated fat), 240mg cholesterol, 522mg sodium, 3g carbohydrate (1g sugars, 1g fiber), 16g protein.
20/21

Zucchini Ricotta Bake

Total Time 1 hour 15 min
Servings 12 servings
From the Recipe Creator: I have made this lasagna-like zucchini casserole frequently over the years and shared the recipe with many people. It's a little bit lighter than other layered casseroles, making it an amazing choice for anyone trying to eat right. —Eleanor Hauserman, Huntsville, Alabama
Nutrition Facts: 1 piece: 150 calories, 5g fat (3g saturated fat), 20mg cholesterol, 513mg sodium, 14g carbohydrate (8g sugars, 2g fiber), 11g protein. Diabetic Exchanges: 1 vegetable, 1 lean meat, 1 fat, 1/2 starch.
21/21

Vegetarian Enchilada Bake

Total Time 40 min
Servings 3 servings
From the Recipe Creator: I’ve had this vegetarian enchilada bake recipe for years. You’ll enjoy the delicious Tex-Mex flavors so much that you won't even miss the meat. —Barbara Stelluto, Devon, Pennsylvania
Nutrition Facts: 1 piece: 286 calories, 11g fat (6g saturated fat), 30mg cholesterol, 676mg sodium, 37g carbohydrate (4g sugars, 5g fiber), 12g protein. Diabetic Exchanges: 2 starch, 2 fat, 1 lean meat.

Zucchini Casseroles FAQ

What’s the best way to keep zucchini casseroles from getting watery?

Zucchini holds a lot of moisture and can create watery casseroles, so it’s essential to remove as much liquid as possible before baking. After slicing, sprinkle it with salt and let it sit for 10 to 15 minutes to draw out excess water. Then, pat it dry with paper towels. You can also saute or roast zucchini briefly before layering it into a casserole to reduce moisture even further. Finally, use a wide baking dish to allow steam to escape and don’t cover it unless the recipe calls for it, since trapped steam can lead to a soggy texture.

Can I make a low-carb zucchini casserole without bread crumbs?

To make a low-carb zucchini casserole, you can skip the bread crumbs entirely or use low-carb alternatives like crushed pork rinds. Shredded cheese, like Parmesan, can also be a good alternative for creating a crisp topping that browns evenly in the oven. If the casserole includes eggs or cheese in the filling, it will set well without needing a bread crumb binder.

What cheeses work best in baked zucchini recipes?

Mild melting cheeses like mozzarella, fontina, Monterey Jack or cheddar, tend to pair best with zucchini. They create a creamy texture and golden top layer. For added depth, small amounts of aged cheeses, like Parmesan, Gruyere or feta, can add sharpness without overpowering the dish. Using a blend of cheeses like mozzarella for stretch and Parmesan for punch is a good way to add balance and complexity. Just avoid cheeses that release too much oil when baked, like some aged Gouda.