16 Summer Casserole Recipes I'm Making on Repeat
Summer produce is synonymous with abundance, so when you have too many fresh vegetables laying about, put them to good use with these delicious summery casseroles and bakes.
![16 Summer Casserole Recipes I'm Making on Repeat](https://www.simplyrecipes.com/thmb/xV69sZIq31Hk2lEfrpdqSYdihKw=/6000x4000/Simply-Recipes-Walking-Taco-Casserole-LEAD-3-d691255cda5e449b8f9df6b8410644e2.jpg?#)
![Walking taco casserole with dollops of sour cream in a casserole dish with a serving spoon (casserole dish missing some casserole)](https://www.simplyrecipes.com/thmb/xV69sZIq31Hk2lEfrpdqSYdihKw=/6000x4000/Simply-Recipes-Walking-Taco-Casserole-LEAD-3-d691255cda5e449b8f9df6b8410644e2.jpg)
These veg-packed recipes prove casseroles aren't just for the colder months. Bake them off and serve them at any summer party, from backyard barbecues to poolside picnics. Scrolling through these 16 summery casseroles, you'll find helpful tips and tricks from our readers, editors, and contributors. Enjoy!
Zucchini, Eggplant, Tomato Gratin
![Zucchini Eggplant Tomato Gratin](https://www.simplyrecipes.com/thmb/xrQttXtSW1WXuP8AWcLa0y8rPzk=/1600x1067/__opt__aboutcom__coeus__resources__content_migration__simply_recipes__uploads__2014__08__zucchini-eggplant-tomato-gratin-horiz-a-1600-f77a8289a55143e1b3e9648b2cc5ea56.jpg)
"The zucchini, eggplant, and tomato in this recipe need to be sliced into 1/4-inch rounds. A mandolin will make short work of slicing the eggplant and tomato evenly and quickly. You can also use a food processor with a slicing disc." —Elise Bauer, Simply Recipes Founder
Broccoli Cheese Casserole
![Broccoli Cheese Casserole - an easy broccoli casserole you'll love!](https://www.simplyrecipes.com/thmb/u-GKH0oyoloTa_A_Rumy-mWL9kI=/1600x1067/__opt__aboutcom__coeus__resources__content_migration__simply_recipes__uploads__2010__12__broccoli-cheddar-casserole-horiz-a-1600-cb5523d47c914a94b6ec49ff82292a48.jpg)
"It was just exactly what I was looking for to make a “broccoli-forward” dish. I grated 1/2 a fresh onion into the egg mixture along with fresh garlic and used a generous amount of chopped, fried smoked turkey bacon. Excellent! The fresh broccoli I used came out with perfect texture." —Lina, Simply Recipes Reader
Stuffed Pepper Casserole
![Stuffed pepper casserole in skillet with melted cheese.](https://www.simplyrecipes.com/thmb/nCY9gjmOswZNnhJFyzncWCg7DPI=/4256x2832/Simply-Recipes-Stuffed-Pepper-Casserole-METHOD-6-29be682958e04ce9a43063e3e84d60bd.jpg)
"Make the casserole start-to-finish (minus adding the cheese) up to a day ahead of time. Cover it and store it in the fridge—it will be just as tasty the next day. When it’s mealtime, reheat the casserole in a 350°F oven until warmed through. Add the cheese and serve." —Katie Morford, Simply Recipes Contributor
Zucchini Noodle Casserole
![Zucchini Noodle Casserole in a Casserole Dish with Some on a Spatula](https://www.simplyrecipes.com/thmb/pvpQPzdWUzwd5ZxDxL4107T3-PE=/5392x3595/Simply-Recipes-Zucchini-Noodle-Casserole-LEAD-03-b7dfa53bb0074971ba931cccfa49ed45.jpg)
"The main complaint that people have when cooking with zucchini noodles is that they end up mushy. My approach to how to deal with this is to salt the zucchini noodles well and let them drain of their excess moisture." —Elise
Denver Omelette Hashbrown Casserole
![Slice of Denver omelette hashbrown casserole lifted from a casserole dish, and in the surroundings, a stack of plates and a mug](https://www.simplyrecipes.com/thmb/DmaCICcoL4JcGvyk32m-oPigTAw=/5400x3599/Simply-Recipes-Denver-Omelette-Casserole-LEAD-833bd80c6f124d069a74fd0789f6fc83.jpg)
"You can assemble it ahead of time or throw it together right before serving. It’s a great way to use up some leftover ham, so bust it out for a special breakfast the day after a big holiday meal–or make it on a weeknight since it’s easy and so, so satisfying." —Jasmine Smith and Sara Bir, Simply Recipes Editors
Chile Relleno Casserole
![An uncut chili relleno casserole on a white background](https://www.simplyrecipes.com/thmb/IBqjYPYXIoZg0WWIxrAxquBz43g=/5517x3678/Simply-Recipes-Chile-Relleno-Casserole-Lead-2-0ba57750aca74fcbb9f922e391b6c0a9.jpg)
"You can easily omit the meat from this recipe to make a vegetarian chile relleno casserole. Add black beans, vegetarian/vegan chorizo, spicy potatoes, and/or sautéed vegetables in place of the meat, if you'd like." —Simply Recipes Editors
Walking Taco Casserole
![Walking taco casserole in a casserole dish with a spoon (casserole dish missing some casserole / some of the casserole was already served)](https://www.simplyrecipes.com/thmb/048tlcMB2gaaEXWYq7qq4LCzmVg=/4707x3138/Simply-Recipes-Walking-Taco-Casserole-LEAD-2-62fc267bbc5f409aa8aac2fcdb46e3d8.jpg)
"For a milder version, replace the Rotel with plain canned diced tomatoes (without chiles)." —Karishma Pradhan, Simply Recipes Contributor
Creamy Baked Mac and Cheese
![Kraft mac and cheese - woman's hands holding a white casserole dish filled with baked mac and cheese](https://www.simplyrecipes.com/thmb/mvSCZqU6dsK67XnmyfpcbV8DrG8=/2000x1331/__opt__aboutcom__coeus__resources__content_migration__simply_recipes__uploads__2019__03__Mac-and-Cheese-LEAD-2-1-9276734751724e8daff246b1c3f105c1.jpg)
"I prefer to shred my own cheese for this recipe. From what I’ve read, pre-shredded cheese is less smooth because anti-caking agents are added. If you’re in a hurry, go for the pre-shredded, but if you have time, shredding the cheese yourself will make this dish that much better!" —Summer Miller, Simply Recipes Contributor
Easy Burrito Casserole
![Baked burrito casserole with lettuce and tomatoes.](https://www.simplyrecipes.com/thmb/JsKUKoWhmJW88iwNiSHe7ducZ2I=/5428x3619/Simply-Recipes-Burrito-Casserole-LEAD-06-c36818aaeac648ec8db333fadeb6d49a.jpg)
"You can use corn tortillas instead of flour tortillas for more nutty corn flavor." —Wanda Abraham, Simply Recipes Visual Editor
Grandma’s Corn Pudding
![Corn pudding in a casserole dish (with a bit already spooned out from the corner) next to a table napkin](https://www.simplyrecipes.com/thmb/7i3GjqXwmEBxlHEBP_ngxc9kvaA=/6058x4039/Simply-Recipes-Corn-Pudding-LEAD-2-096e866f83254b1285cea50677e62ec3.jpg)
"I have been making something similar to this for a few decades. My grandmother's recipe called for sweetened condensed milk AND sugar. I use regular milk and half of the sugar she did. Toss in some feta for a nice contrast or go for chopped jalapenos for some kick." —Saveena, Simply Recipes Reader
Caprese Stuffed Shells
![A plate of creamy caprese stuffed shells on a grey plate.](https://www.simplyrecipes.com/thmb/AGXiLEJGlJmps5GGIwSp2yZY3kk=/4256x2832/Simply-Recipes-Caprese-Stuffed-Shells-LEAD-8-03789aa502374355990f1049c54033d9.jpg)
"Parboil the jumbo shells until they’re just barely al dente, which means the pasta is still firm when bitten. They will continue to cook in the oven, so they shouldn’t be completely tender when you’re stuffing them." —Sheela Prakash, Simply Recipes Contributor
Fennel Gratin
![Fennel Gratin in an Oval Shaped Cast Iron Skillet](https://www.simplyrecipes.com/thmb/I5hWo-k9KigaPYSyfKmaI1frlao=/1800x1200/__opt__aboutcom__coeus__resources__content_migration__simply_recipes__uploads__2011__12__fennel-gratin-horiz-a-1800-7254f13b80da4dbab09a4b2ddb24f092.jpg)
"In my family, we gratin it with béchamel and lots of parm after boiling for seven minutes like in this recipe. It is a valid alternative for those who do not fancy mozzarella, if there are any!." —Rossella, Simply Recipes Reader
Stuffed Shells with Summer Squash and Ricotta
![Cheesy meat-free stuffed shells with ricotta and red sauce on a spoon](https://www.simplyrecipes.com/thmb/Vv3N6j98F4UBhPhfGQWG2VABlvA=/1024x682/__opt__aboutcom__coeus__resources__content_migration__simply_recipes__uploads__2019__08__Squash-Stuffed-Shells-Lead-6-1024x682-b8b638637b294ce2973bd1d75238bbd5.jpg)
"Stuff the shells up to three days in advance and have them ready in the fridge. Also, the dish freezes well. After baking, freeze the entire dish of shells (or just the leftovers) in an airtight freezer-safe container, and they will keep for a few months." —Nick Evans, Simply Recipes Contributor
Easy Breakfast Casserole
![Breakfast Casserole](https://www.simplyrecipes.com/thmb/fisv2m6YlwZL70fY1qGIBWATXH0=/1600x1067/__opt__aboutcom__coeus__resources__content_migration__simply_recipes__uploads__2008__08__as-you-like-it-breakfast-casserole-horiz-a-1600-371e13a6bdcc4aa4b3251cd5fb2fcfe7.jpg)
"You can add cooked, sturdy veggies such as broccoli into the casserole, or put them in raw. If using raw veggies, cut them into smaller pieces and know that they'll be crunchier if you put them in raw instead of cooked." —Elise
Zucchini and Spinach Gratin
![Zucchini Spinach Gratin](https://www.simplyrecipes.com/thmb/n8VdnS_kICdrDFND0XUznv0aLD0=/1400x933/__opt__aboutcom__coeus__resources__content_migration__simply_recipes__uploads__2011__08__zucchini-spinach-gratin-horiz-b-1400-dff7dc0a06084940bd51e0fe8fe1f543.jpg)
"If you prefer to use fresh spinach over frozen, use six packed cups of fresh chopped spinach leaves, blanched and drained." —Elise
Twice Baked Potato Casserole
![Twiced baked potato casserole in casserole dish](https://www.simplyrecipes.com/thmb/PMCFo69xM-TAsrHCVdG2BxvZTmg=/4256x2832/Simply-Recipes-Twice-Baked-Potato-Casserole-LEAD-2b-4f59117cc2434f1f81a69e62cb058a30.jpg)
"No need to discard jackets (peels), in my opinion. Most of the fiber and a fair amount of nutrients are contained in these natural wrappers. I always keep skins on chunked potatoes cooked for mashing or really any other application." —Swan, Simply Recipes Reader