Garlic and Herb Squash Casserole Recipe

Published: Aug 24, 2022 · Modified: Mar 25, 2026 by Belly Laugh Living · This post may contain affiliate links ·

I absolutely love Casseroles or “one-dish” dinners! This Garlic and Herb Squash Casserole is definitely worth trying out. We used Patty Pan Squash, but it can be made with any type of summer squash. It’s the perfect summer dish that can be enjoyed as a main course or as a side with grilled chicken, steak, or pork.

I love making garlic and herb squash casserole, and adding fresh herbs and tomatoes straight from my garden is the best part. Every year, I plant a small herb garden with tomatoes, peppers, and cucumbers in pots. I haven’t tried growing squash in pots yet, but it’s something I’m interested in doing. If you have any tips or tricks for growing squash, I would appreciate it! The first type of squash I want to try growing is pattypan because it has a great texture, size, and flavor and is one of my favorites.

If you’re unfamiliar with them, according to Wikipedia, the name Pattypan is derived from “a pan for baking a patty”. I love that the pattypan squash is also known as the UFO squash because of its shape.

How to make this Garlic and Herb Squash Casserole

This Garlic and Herb squash casserole is a breeze to make, just like most one-pan dishes. Simply cut up the squash and add it to a casserole dish along with tomatoes, oregano, garlic, mayonnaise, and parmesan cheese. Baking it all together creates a creamy and flavorful dish that’s sure to satisfy.

To start, chop the squash into small, manageable pieces. Next, slice the garlic and detach the oregano leaves from the stems (if fresh oregano isn’t available, dried oregano works just as well). Grate the parmesan cheese and rinse the cherry (or grape) tomatoes thoroughly.

In a small casserole dish, arrange half of the squash, tomatoes, garlic, and oregano. Spread half of the mayonnaise over the squash and season with salt and pepper. Layer the remaining squash, tomatoes, garlic, oregano, and mayonnaise on top. Sprinkle with Parmesan cheese and pour ¼ cup of water into the dish.

To cook, preheat the oven to 375 degrees and bake for 45 minutes. Once done, the squash should be soft, and the cheese should be melted.

If you’re having this dish as your main course, It’s really amazing when served with crusty bread. Alternatively, it also makes for a delicious side dish when paired with grilled chicken, pork chops, or steak. We hope you enjoy it!

If you’re looking for more enjoyable recipes featuring pattypan or summer squash, be sure to take a look at…: Chessy Turkey Stuffed Pattypan, and Roasted Herb Garlic Pattypan.

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