Try Yellow Squash Casserole for a Southern-inspired meatless recipe. It can be a great side dish or eaten as a full meal.
Jump to RecipeA couple of months ago we had a couple yellow squash grow in out in the garden. I wasn’t sure what to do with them, besides grilled squash. But I wanted something different. And what good Southerner doesn’t love a casserole?!
We’ve used Ritz crackers before to give a buttery and crunchy taste to meals. It worked so well on this! And of course, it had to have a lot of cheese. There’s no such thing as too much cheese!
I saw a recipe on Pinterest a while ago that was still very different, but gave me the idea for the yellow squash casserole. If I still had the link I would share it with you. Though, that’s what I do often. I see a recipe, think of what I would do different, or how to make it with something different. Some of my favorite recipes are ones that I found in a magazine or online and end up changing almost everything about it.
The first time we made this, it was our dinner that night. It’s a great option for a meatless meal. The second time we made it, I brought it to my in-laws as a side dish. Either option works well for this recipe.

Yellow Squash Casserole Step by Step
Ingredients
- 2 yellow squash (sliced)
- 1 tbsp olive oil
- 1 yellow onion (diced)
- 2 cloves garlic (minced)
- 1/4 cup water
- 30 Ritz crackers (1 sleeve)
- 1 1/2 cups cheddar cheese (shredded)
- 2 eggs (beaten)
- 1/2 cup almond milk
- 4 tbsp butter (melted)
- 1/2 tsp salt
- 1 tsp pepper
- 2 tbsp butter
Preparation
Preheat the oven to 400F. In a large skillet, heat the olive oil over medium-high. Add the onions and garlic and saute for about 2-3 minutes.

Place the sliced squash in the pan and pour in the water. Cover and steam for 5-7 minutes.

Meanwhile, crush the crackers and place in a medium mixing bowl. Add the cheddar cheese and toss to combine.

Divide the cracker mixture into two bowls. In one bowl of cracker mixture, add the milk, eggs, and melted butter and stir to mix.

Transfer the squash to the same bowl along with the salt and pepper.

Layer the squash in the bottom of a 9×13 baking dish.

Top with the remaining cracker/cheese mixture.

Cut 2 tbsp of butter into small slices to place on top.

Bake for 25-30 minutes, until the crackers are lightly browned and the cheese is melted.

Leftovers
Storage: We stored the leftover yellow squash casserole in the baking dish covered with foil in the refrigerator.
Reheating: To reheat, place back in the oven at 350F for about 5-10 minutes, until it’s heated through.

Recipe
Originally Published On: October 19, 2020
Last Updated On: July 25, 2023

Yellow Squash Casserole
Ingredients
- 2 yellow squash (sliced)
- 1 tbsp olive oil
- 1 yellow onion (diced)
- 2 cloves garlic (minced)
- 1/4 cup water
- 30 Ritz crackers (1 sleeve)
- 1 1/2 cups cheddar cheese (shredded)
- 2 eggs (beaten)
- 1/2 cup almond milk
- 4 tbsp butter (melted)
- 1/2 tsp salt
- 1 tsp pepper
- 2 tbsp butter
Recommended Equipment
Instructions
- Preheat the oven to 400F
- In a large skillet, heat the olive oil over medium-high
- Add the onions and garlic and saute for about 2-3 minutes
- Place the sliced squash in the pan and pour in the water
- Cover and steam for 5-7 minutes
- Meanwhile, crush the crackers and place in a medium mixing bowl
- Add the cheddar cheese and toss to combine
- Divide the cracker mixture into two bowls
- In one bowl of cracker mixture, add the milk, eggs, and melted butter and stir to mix
- Transfer the squash to the same bowl along with the salt and pepper
- Layer the squash in the bottom of a 9×13 baking dish
- Top with the remaining cracker/cheese mixture and cup 2 tbsp of butter into small slices to place on top
- Bake for 25-30 minutes, until the crackers are lightly browned and the cheese is melted
All nutritional information is based on third-party calculations and should be considered estimates. Actual nutrition content will vary based on brands used, measuring methods, portion sizes, and more.
Other Vegetable Casserole Recipes
- Yellow Squash Casserole
- Summer Veggie Stir-Fry
- Grandpa’s Sweet Potato Casserole
- Broccoli and Cheese Casserole
- Cheesy Rice Casserole with Chicken and Broccoli
- Vegan Pot Pie Casserole
- Cheesy Spinach Artichoke Rigatoni Pasta
This looks delicious and so easy to prepare! Also love the idea of adding Ritz crackers. I think we’ll add them to everything now lol.
The ritz crackers are so good on a casserole! Gives it a bit of crunch and adds a lot of flavor.
I have never had a squash casserole but I think I would love it! This sounds so good and filling and perfect for a side dish!
It’s great as a side or as a main! We’ve actually had it both ways 🙂
I love a good casserole recipe. This would be perfect to make for the weekend.
We do too! It was so yummy and yes would be perfect for the weekend.
OH MY GOSH!!! This recipe could not have come at a more perfect time. I am still swimming in summer squash from our garden this year. I needed some new inspiration. This is so perfect. Thank you for sharing.
This yellow squash casserole looks amazing! I can’t wait to give it a try, especially with squash season which is pretty much here.
I really enjoyed trying your recipe. I had so much fun with the kids and It was a success. It turned out well and delicious!
What a great side dish (or main dish if it’s a light meal!). We are always looking for unique ways to make squash.
Ohhh, this recipe is something! It looks really tasty! Thanks for sharing this recipe!
I adore casseroles and this one with yellow squashes looks so yum! I need to give this a go.
This Casserole looks yummy. Sometimes we like to change the vibes for dinner. This would be perfect. Thank you for sharing!
Yellow Squash Casserole sounds so healthy and nutritious. I hope I can make one on weekends. Looks so yummy and tasty!
I love squash and this sounds delicious. There is certainly a lot of summer squash this time of year, and this is a perfect way to use it.
I love casseroles, but I’ve never tried yellow squash. This dish looks delicious and so easy to make! I can’t wait to try this recipe!
This is an awesome way to prepare squash. I’ll definitely try your recipe for a nice vegetarian casserole.
This sounds amazing and definitely something I want to try making as we come into the winter months! It would be perfect for Thanksgiving if we celebrated over here.