Is there a zucchini hater in your family? Give this Skinny Zucchini Casserole a try and see how it disappears fast. This is one of our favorite summer side dishes or a light summer lunch. Shredded zucchini baked in oven with layers of mozzarella and a mixture made with an egg, yogurt and flour.

This post was originally published in 2015 and we are updating it today with additional information.

Skinny zucchini casserole layered with mozzarella and yogurt sauce.

This is the Best Skinny Zucchini Casserole that will make you forget about all other zucchini casserole recipes. Do you hate zucchini? You’ll have to change your mind after trying this super yummy casserole. You will be surprised by the simplicity of the recipe and the very tasty result. You won’t believe this is one of the low calorie casseroles. It is so GOOD that you don’t need to be on diet to make it. Believe it or not, you don’t need lots of butter or heavy cream to make a tasty zucchini recipe. Skinny can be tasty too! I promise.

A slice of baked zucchini casserole on a spatula right from oven

If you are following Give Recipe for a while, you might have realized that we’ve shared LOTS of zucchini recipes ~~this summer~~ since we began this blog. Zucchinis are abundant in summer and I’m always trying to develop new recipes with this super healthy vegetable. Hope you aren’t bored. Maybe I can prepare a cook book about the best zucchini recipes one day. What do you think? I just want to make everyone see that they will love zucchini as long as they combine it with the right ingredients in the right way. If you are a zucchini lover though, just write ‘zucchini’ in the search box on the sidebar and find our 30+ zucchini recipes. Ok you can start with our readers’s all time favorite Chocolate and Yogurt Zucchini Bread if you are a chocolate lover and not after a low calorie recipe.

Low calorie zucchini casserole served in a casserole pan

We already have a skinny zucchini casserole recipe on the blog, which is LOVED by our readers. It has become the most favorite recipe of us since the first day we published it. I wanted to try a skinnier version this time and to be honest I love this one even more because of my love of yogurt.

What makes it the best skinny zucchini casserole recipe?

Unlike our former casserole, this baked zucchini casserole doesn’t have a golden crust on the top. I didn’t use any breadcrumbs or cornmeal for topping this time. I just prepared a simple mixture of plain yogurt, flour and egg and layered shredded zucchini in a baking pan with it.

Vegetarian zucchini casserole right from oven

In addition, I used 2 eggs in the former casserole and it was ok, but I wanted to try this one with 1 egg. I didn’t mix it with grated zucchini, I added it in the yogurt mixture. I wasn’t sure at the beginning whether it would be enough to hold the ingredients together as I wanted to serve it in squares. It was pretty enough as you can see in the pictures.

As for the amount of flour, I added just 2 tablespoons. I used all-purpose flour, but you can use flour of your choice. If you are following a gluten-free diet, you can use rice flour or corn meal or any other gluten-free flour on hand. Yogurt will do the work, so it doesn’t matter. You can also check out our list of 15 Gluten Free Zucchini Recipes post if you’d like to see more options. Oh and for those who are into baking, Michelle of My Gluten Free Kitchen prepared a great list of 30+ Gluten-Free Recipes For Baking With Zucchini. I’m sure there is something for you, go visit it!

Serving zucchini casserole baked in oven in squares

Another thing that makes this zucchini casserole recipe skinny is that it doesn’t have any butter or oil. Just very little to grease the casserole pan. Trust me you won’t miss butter or oil at all. On the other hand, black pepper is a must for me when making a casserole with zucchini. And it doesn’t have anything to do with calories, right? Use generous amount of it.

How to make this low-calorie zucchini casserole

There is something I need to warn you about the recipe. You should squeeze the grated zucchini very well. To make this, sprinkle a pinch of salt over grated zucchini, wait for 5 minutes to let it release excessive water and then squeeze in your hands. Otherwise, you end up with a watery or soggy casserole.

So make a layer of grated zucchini, top with shredded mozzarella and yogurt mixture. Make another layer of zucchini and yogurt mixture. Bake it covered for 35 minutes, uncover and top with extra mozzarella. Bake for another 15-20 minutes or until golden.

The mozzarella and yogurt layers inside and on the top make it my best skinny zucchini casserole.

Here are a few more zucchini recipes you need to check out:

Zucchini Pie Recipe from The View From Great Island

Lemon Dill Shrimp Zucchini Noodle Recipe from Wonky Wonderful

Cheesy Zucchini Quinoa Casserole from Give Recipe

See our other casserole recipe videos here: