Zucchini, Tomato and Potato Casserole
Harvest from your summer garden and make this delicious Zucchini, Tomato and Potato Casserole recipe! It’s a perfect summer side dish for veggie lovers!
If you have a garden full of zucchini (or summer squash or courgette or whatever you choose to call it…) you are probably looking for delicious ways to use it up. I came across some beautiful local organic yellow zucchini and knew I had to come up with something to really showcase the flavour and colour. Just look at that vibrant yellow!
This casserole is a perfect side dish for many summer meals. Caramelized onions line the bottom, with layers of sliced of zucchini and potato with a final layer that is carefully and beautifully arranged to include tomato. It is then topped with basil and almonds. This recipe was inspired by this recipe in Southern Living.
It didn’t take me long to prep but my knife skills are severely lacking. I wish I had a mandolin when I was doing this. I do have a food processor but I’ve never used the slicing blade and didn’t think this was the time to try.
It is important to try and get an even thickness with your slices though so that it all cooks evenly.
Zucchini, Tomato and Potato Casserole
Ingredients:
1 Large Onions, sliced ¼” thick
2 medium Potato, sliced ¼” thick
2 medium Zucchini, sliced ¼” thick
2 medium Tomatoes, sliced ¼” thick
1 tsp Sea Salt
¾ tsp Black Pepper
2 Tbsp Extra Virgin Olive Oil
1 tsp dry Basil or 1 tbsp fresh Basil, minced
¼ Cup Sliced, Blanched Almonds
Directions:
Preheat oven to 375°.
Layer onions into a 10-inch quiche dish or pie dish.
Toss together potatoes, zucchini, tomatoes with salt and pepper.
Arrange potatoes and zucchini into separate layers over the onions and drizzle with 1 Tbsp oil.
Arrange potatoes and zucchini and tomatoes in a single layer over this, alternating and overlapping slightly.
Sprinkle basil and almond over top then drizzle with remaining oil.
Cover with aluminum foil and bake for 30 minutes.
Remove foil and bake for a further 35 to 40 minutes or until golden brown.
Let stand about 10 minutes before serving.

Zucchini, Tomato and Potato Casserole
Ingredients
- 1 Large Onions, sliced ¼" thick
- 2 medium Potato, sliced ¼" thick
- 2 medium Zucchini, sliced ¼" thick
- 2 medium Tomatoes, sliced ¼" thick
- 1 tsp Sea Salt
- ¾ tsp Black Pepper
- 2 Tbsp Extra Virgin Olive Oil
- 1 tsp dry Basil or 1 tbsp fresh Basil, minced
- ¼ Cup Sliced, Blanched Almonds
Instructions
- Preheat oven to 375°.
- Layer onions into a 10-inch quiche dish or pie dish.
- Toss together potatoes, zucchini, tomatoes with salt and pepper.
- Arrange potatoes and zucchini into separate layers over the onions and drizzle with 1 Tbsp oil.
- Arrange potatoes and zucchini and tomatoes in a single layer over this, alternating and overlapping slightly.
- Sprinkle basil and almond over top then drizzle with remaining oil.
- Cover with aluminum foil and bake for 30 minutes.
- Remove foil and bake for a further 35 to 40 minutes or until golden brown.
- Let stand about 10 minutes before serving.
Nutrition Information:
Serving Size:
1 gramsAmount Per Serving: Unsaturated Fat: 0g

Need more recipes to use up all that zucchini? Here are some recipes from my friends to help!
The Best Chocolate Chip Zucchini Bread
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This looks absolutely delicious! Absolutely love the colours and presentation – stunning dish to serve to guests.
I would love to try this,it looks delicious! You have done a awesome job !!
What a great way to use up the abundance of produce from your garden, it looks good and probably tastes awesome
That looks delicious! It’s always great to have new recipes for zucchini as well.
I am so impressed with this recipe. This will be perfect here in another few weeks or so to use veggies from my garden. I am sure my family will love this. Thank you for sharing this recipe.
I make a similar casserole but use onion slices instead of potatoes. I am going to have to try your version!
Sounds delish x
Yum! Looks delicious! Def bookmarking thanks!!
This looks so delicious! My family would love this.
Love the look of this dish, so pretty, this is a dish I would enjoy, sadly no one else in my home would though
Now, this is something I’ve never had before, but it does look so very appealing and sounds tasty! I;ve pinned this … I think this would be something we’d all love… and for us, it’s different!
Thank you so very much.
This looks fantastic! I love how colorful it is! I’ll be able to make plenty of this in a week or so, the zucchini, potatoes and tomatoes will all be ready to eat then!
Shared on my facebook dinner group. They are always asking for vegan recipes! Thanks.
that is just the sort of dish we’d love. you made it look so beautiful too.
Here comes the attack of the zucchini monsters! great way to use them up
It sounds really yummy and it looks very pretty! Thanks for the recipe!
This looks amazing!!! What a delicious way to use up all the yummy summer vegetables
Wow, that looks amazing! I don’t even really like zucchini but I’d like to try it… 🙂 I’m sure all the flavours would go so well together. Wish we’d had this recipe when I was a kid and we had zucchinis galore in the garden… 🙂
your dish looks amazing…mine other the other hand was just ugly…..it tasted good soI will try it again
Holy tomatoes! I love this recipe, Elizabeth. I will be featuring it at our Inspiration Monday Party this Sunday 2pm EST. Hope to see you there! 🙂 Julie redheadcandecorate.com
Great summer and healthy dish! Thanks for sharing it.
Beautiful colors, and looks delicious!
What a beautiful dish and I love that these are the veggies that are currently growing in my garden!
Great way to use our garden vegetables, the casserole looks so good
Wow this looks delicious! Thank you so much for linking up at Tasty Tuesday! Your recipe has been pinned to the Tasty Tuesday Pinterest board! Please join us again this week!
With all the veggies fresh in season,this made a beautiful meal thanks
This dish is delicious I will be serving it for Thanksgiving
What a beautiful dish! And delicious sounding too!
What a beautiful presentation! I’m looking forward to all those zucchinis from the garden this year!
This dish looks lovely — I’ll keep it in mind when I have an overflow of zucchini this summer!
How many servings does this casserole serve? How many calories per serving?
my sister thinks this is one of the best recipes she ever make
This would be a meal in itself for me…love the addition of almonds
This recipe looks fabulous with all the colors and I love that it’s really healthy