Baked Zucchini Casserole With Cheese, with carrots, zucchini, and a cheesy sour cream herb sauce - is so dang good! Super easy to make and bake. This is a recipe that everyone will enjoy. Make in an ovenproof skillet and you've got a one-pan casserole! This recipe is keto and low carb but you'll never know it.
This is the Best Cheesy Zucchini Casserole
I make this all the time for a weeknight side dish, as well as for the holidays! You can easily double or triple this dish and make it for a holiday crowd or dinner party.
This is one of my favorite zucchini casserole recipes! Why? I love that it has sour cream and cheese, is super easy to make, and is keto and low carb friendly.
Who doesn't love the addition of cheese in this casserole? Any casserole with cheese is a favorite in my book - and my family's. Maybe this is because my husband is from Wisconsin? 🙂
Why You will Love This Cheesy Zucchini Squash Casserole
This is a quick and easy zucchini casserole to make. Simply saute the veggies until soft, mix in the remaining ingredients (sour cream, cheese, salt, pepper, and seasoning), then bake!
One Dish Casserole
You don't have to use a 1.5-quart casserole dish if you use an ovenproof skillet! Just saute your veggies until tender then mix in remaining ingredients, top with pork panko and send it straight to the oven!
I love to do this when I'm cooking for my family. If we have company over or, are serving for a holiday meal, I make in a casserole dish
Keto and Low Carb
I love that this zucchini casserole is keto and low carb friendly. Some people may be concerned about carrots. Even with carrots and onion this dish only has 7.4 g net carbs.
If you are concerned about eating carrots you can substitute zucchini in place of the carrots. I don't recommend replacing the onion as it will remove a lot of flavor from the zucchini casserole.
For anyone not following a keto or low carb diet, you can substitute seasoned breadcrumbs for the pork panko. You can also substitute a low-fat sour cream and reduce the butter by 1 tablespoon!
25.5 g fat | 17.7 g protein | 7.4 g net carbs
Zucchini Casserole Recipe Ingredients and Tools
Here are the ingredients and tools you'll need to make zucchini casserole:
Ingredients
- butter
- zucchini
- carrots
- onion
- garlic
- sour cream
- cheddar cheese
- salt and pepper
- Italian seasoning
- pork rind panko (or seasoned breadcrumbs)
Tools
- 1.5-quart casserole dish (I've had these for years!)
- 12" skillet
- cutting board
- chefs knife
- measuring cup
- measuring spoons
- mixing spoons
- nonstick spray
How to Make This Cheesy Zucchini Bake
Here's how to make bakes zucchini casserole with cheese! 🙂
Prep
Preheat oven to 350 degrees F. Prepare and assemble all ingredients. Spray a 1.5-quart casserole dish with nonstick spray.
Saute
In a 12" skillet, melt butter and saute onions and carrots until they are almost tender. Add zucchini and garlic to pan and saute until all vegetables are tender.
Mix
Turn stove off. Mix in sour cream, cheese, salt, pepper, and Italian seasoning. Spoon mixture into the casserole dish and sprinkle with pork panko or breadcrumbs.
Tip: if you have a cast-iron skillet you can mix all your ingredients in the pan and send it right to the oven. No need for a separate casserole dish! 🙂
Bake
Bake for approximately 20 minutes or until cheese is melted and panko/breadcrumbs are golden brown. That's it! Enjoy!
Variations of Cheesy Zucchini Casserole
Can I use frozen zucchini?
Yes. Zucchini will need to be thawed and cooked in the microwave according to instructions. Drain any water and add to onions and carrots then mix in remaining ingredients.
How can I lower the fat in this recipe?
To lower the fat in this recipe you can use low-fat sour cream, and reduce the butter by 1 tablespoon. Use breadcrumbs instead of pork panko if you are not following a keto or low carb diet.
Healthy Zucchini Casserole FAQs
It depends upon the recipe. For this baked zucchini recipe, you do not have to peel the zucchini.
Yes. You can use squash instead of zucchini, or even a combination of zucchini and other squashes.
No. You can substitute additional zucchini or squash in place of carrots.
A casserole will keep 3 to 4 days in the refrigerator
If you tried this recipe, let me know! I'd love for you to come back and give the recipe a 5 star rating and leave a review in the comments! 🙂 Let's stay connected, so please follow me on Instagram, Facebook, and Pinterest! Subscribe to my newsletter to get healthy fresh recipe ideas every week!
Baked Zucchini Casserole (Keto)
Ingredients
- 3 tablespoons butter
- 4 medium zucchini sliced (about 4 to 5 cups)
- 3 carrots (thinly sliced)
- ½ cup onion (chopped)
- 1 garlic clove (minced)
- 8 oz sour cream
- 1 cup cheddar cheese (grated)
- ½ teaspoon salt
- ½ teaspoon pepper
- ½ tablespoon Italian seasoning
- ¼ cup pork panko
Instructions
- Preheat oven to 350 degrees F. In a large skillet, melt butter. Saute onions and carrots until almost tender. Add zucchini and garlic to pan with onions and carrots. Saute until all vegetables are tender. Remove from heat and mix in sour cream, cheese, salt, pepper, and Italian seasoning.
- Spray a 1.5- quart baking dish with nonstick spray. Spoon vegetables into casserole dish. Sprinkle pork panko over top of mixture. Bake uncovered for 20 to 25 minutes until cheese is melted and topping is a golden brown.
Kori's Tips
Nutrition
© 2024 Seeking Good Eats™
More Recipes with Zucchini
Here are some more delicious recipes with zucchini in them:
- Low Carb Tuna Casserole (Keto Seafood Casserole)
- Healthy Chicken Cordon Bleu Casserole (Low Carb Keto)
- Zucchini Ground Beef Taco Casserole
- Low Carb Chicken Enchiladas (Keto Zucchini Enchilada Boats)
- Keto Zucchini Recipe - Zucchini Carpaccio
This zucchini recipe is so dang good (and easy)! With fresh zucchini, carrots, and a tasty cheesy sour cream herb sauce - you're gonna love that this is a healthy recipe that everyone in your house will eat. This is a keto recipe but easily adaptable for those not on a ketogenic diet or low carb diet. This is the perfect side dish for a weeknight dinner or for the holidays! #keto #zucchini #casserole #ketogenic #lowcarb #lchf #seekinggoodeats #healthyrecipe #ketorecipes #ketogenic
Ella
This is 5-Stars the way I made it. Used 5 zucchini, 3 were large other 2 were smaller. Used more sour cream and cheese and used Italian breadcrumbs on top. Also boiled 1/2 the zucchini in pot for 5 minutes (couldn't fit all the zucchini to saute). I'd rather spend a few carbs on few breadcrumbs that carrots in this dish, just never been a fan of pork rinds on casseroles.
seekinggoodeats
That sounds wonderful! I love your substitutions. Thanks for trying out the recipe! 🙂
Kate Evans
I wish this included an exact measurement for the amount of zucchini to use (i.e. how many cups or ounces?) I have a HUGE zucchini...no idea how to equate it to 4 medium.
Kori
Hi, the equivalent is about 4 to 5 cups. The recipe is very forgiving. Hope you enjoy!