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 it in an ovenproof skillet, and you've got a one-pan casserole!
Why You'll Love It
Easy and Delicious
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
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
Low Carb and Keto-Friendly
To make this casserole low-carb and keto-friendly, use crushed pork rinds. To lower the fat in this recipe, use fat-free sour cream and potentially reduce the amount of cheese used.
Keto followers may be concerned about carrots. Even with carrots and onion this dish only has 7.4 g net carbs. You can also substitute additional 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.
Zucchini Casserole Recipe Ingredients
- Butter
- Vegetables: zucchini, carrots, and onion.
- Garlic
- Sour cream
- Cheddar cheese
- Seasonings: salt, pepper, and Italian seasoning.
- Crushed pork rinds or Seasoned Breadcrumbs: crushed pork rinds are also called pork rind panko. If not following a keto diet you use seasoned breadcrumbs instead. (crushed pork rinds or seasoned breadcrumbs)
How To Make This Cheesy Zucchini Bake
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!
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
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.
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📖 The recipe.
Baked Zucchini Casserole
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 ounces sour cream
- 1 cup cheddar cheese (grated)
- ½ teaspoon salt
- ½ teaspoon pepper
- ½ tablespoon Italian seasoning
- ¼ cup seasoned breadcrumbs or crushed pork rinds (low carb and keto: use crushed pork rinds - also called 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 the vegetables into the casserole dish. Sprinkle the breadcrumbs or pork panko over the mixture. Bake uncovered for 20 to 25 minutes, until the cheese is melted and the topping is golden brown.
Kori's Tips
Nutrition
© 2025 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!