This zucchini, ricotta, Parmesan, and tomato sauce casserole recipe makes a delicious recipe for summer. It is easy and quick to make.
The days this week are so gorgeous that makes me wish I could leave my work every day at 3 pm and lie down on the green grass of a beautiful park. Unfortunately, this is not possible, but I am already pretty satisfied spending my one-hour lunchtime having lunch with my coworkers in the small green space we have close to the office.
I think this little break is essential to clear up our minds and get more energy to keep working in the afternoon. I also don’t complain about my office, because it has a huge window with a beautiful view of the city.
I hate when you look at the windows and just see buildings in front of you. It is sad not to be able to see some beautiful views from the window, but that’s not my case.

For this dish since it is so easy to make I woke up 1.5 hours before leaving and I made this recipe. I had my ingredients all ready the day before and in the morning I just assembled it.
While I was getting ready (taking a shower, changing, putting on makeup…) this delicious zucchini casserole dish was baking in the oven. Then when it was ready I put a piece in my lunch bag and ate it outside with my colleagues that day. 
I really hope you can give this recipe a try. Enjoy!
Want another casserole dish? I’ve got some great ones you have to try! Some of my favorites are my Cauliflower Casserole Recipe, Sausage and Potato Breakfast Casserole, Broccoli and Cauliflower Casserole Recipe, and Brussels Sprouts Casserole Recipe. Enjoy!!

Zucchini Casserole Recipe
Ingredients
- 2 cups fresh law-fat ricotta cheese
- 1 cup parmesan cheese grated
- 3 eggs
- 3 zucchinis sliced ⅛" thick
- 2 ½ cups homemade tomato sauce
Instructions
- Preheat oven to 375°.
- In a medium bowl mix ricotta cheese, ½ cup Parmesan cheese and eggs. Stir well.
- In a small casserole layer 5 or 6 zucchini slices.
- Spread some tomato sauce on the top of the zucchinis.
- Next, place some of the ricotta cheese mixture.
- Repeat the layers until all your ingredients are all used up.
- Top with sauce and the other half of Parmesan cheese.
- Bake 30 minutes covered and 10 minutes uncovered.
- Let stand about 10 minutes before serving.
Notes
- The amount of zucchinis you need will depend on the size of them. While larger ones are great, they are a bit more watery than small zucchinis.
- Freshly grated parmesan does melt better than pre-grated parmesan cheese. But in a rush, you can use pre-grated!
- To store: Keep in mind that zucchini is a watery vegetable so the longer you store it, the more the texture changes (this is why I don't recommend freezing this). So, I suggest eating it immediately or only keeping it for 2-3 days in the fridge in an airtight container.
- To reheat: Reheat the leftover casserole in the microwave until warmed through.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
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Definitely perfect for summer, but I also love that it can seamlessly transition into fall, no problem. Beautiful.
Daaaaang, girl! You certainly know how to make lunch tasty! I’ve been meaning to make a zucchini lasagna/casserole this summer and yours looks so tasty, I really must give it a go! Happy to hear the weather has been nice in your neck of the woods!
This is way better than lasagna if you ask me! Lovely recipe Olivia! Pinned!
This casserole looks so delicious! Love that it is healthier and so easy to make!
I can’t get enough zucchini! This casserole looks amazing!! Also I love that short ingredient list 🙂
This looks so yummy and I want to make today. Question, your recipe states 3 eggs but your instructions indicate add ‘an’ egg. Does the recipe call for 3 eggs or one egg? Thanks. 🙂
3 eggs, Joan. Thanks for your question.
This looks so good! I can’t resist a good casserole 🙂
I have a bunch of fresh zucchini in my garden waiting to be picked and this is perfect for dinner! I know that this will be going on my dinner menu very soon.
This recipe is very beginner friendly, it’s not possible to mess it up. The casserole came out delicious!
Awesome! I’m so thrilled to hear you enjoyed this recipe!
Wow I love this picture of this recipe 😋
Happy you liked it 😉