Yellow Squash Casserole is creamy and cheesy with a buttery and crispy Ritz cracker topping. It makes a delicious side dish and is perfect for using fresh summer squash.
Yellow Squash Casserole with lots of cheddar cheese and a buttery cracker crumb topping is one of my favorite casseroles to make during the summer months. It’s super creamy with tender slices of summer squash and onion. A combination of mayonnaise and sour cream gives it plenty of creamy flavor.
Serve Yellow Squash Casserole at a summer potluck or as a comforting side dish for a family meal. I love it with fried chicken. Actually, I think I love everything with fried chicken. 🙂
This recipe also makes a great holiday side. My som requests it every Thanksgiving and Christmas.
Yellow squash is plentiful at farmers markets in the south during the summer months and it is easily grown in a home garden so I tend to make this casserole frequently during the summer months. But a creamy casserole like this is also extremely comforting during the cooler months.
Yellow Squash Casserole Recipe Tip
This casserole is really easy to make. You do want to precook the squash some because you don’t want it to be crunchy at all in the finished casserole. You can either slice it and saute it, steam it, or even microwave it until just tender.
★★★★★
What readers are saying
This is so easy to make! The taste will take back to grandma’s with family all around eating, laughing and good food.
Make Ahead and Storage Suggestions
This recipe can be prepared through Step 5 a day in advance and refrigerated. Leftovers can be stored in an airtight container in the refrigerator for 4 days.
More Southern Casseroles
- Southern Broccoli Casserole– with a buttery cracker crumb topping.
- Old-Fashioned Cabbage Casserole– people rave about this recipe.
- Pineapple Casserole– a unique blend of sweet and savory.
- Lima Bean Casserole– Creamy and cheesy.
- Crock Pot Sweet Potato Casserole
Pin this now to find it later
Pin ItYellow Squash Casserole
Ingredients
- 4 medium yellow squash, ends trimmed and cut into 1/4-inch slices
- 1 medium onion, sliced
- salt and pepper
- 1 egg, lightly beaten
- 1/4 cup mayonnaise
- 1/3 cup sour cream
- 1/4 cup milk
- 1 cup heaping shredded cheddar cheese
- 24 Ritz crackers
- 2 tablespoons butter, melted
Instructions
- Preheat oven to 350 degrees and lightly grease a casserole dish.
- Steam squash and onion until just tender, about 5 to 7 minutes.
- Season squash and onion with salt and pepper.
- In a large bowl, whisk together egg, mayonnaise, sour cream, and milk.
- Stir in cheese, squash and onion. Transfer mixture to casserole dish.
- Crush crackers and scatter on top of squash. Drizzle with melted butter.
- Bake for 30 minutes.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Originally posted May 28, 2016.
Disclosure: This post contains affiliate links.
It’s my first attempt at a squash casserole too and I added butternut squash. I’m so happy it’s delicious because I was worried it was going to be a waste of food since I’m not the best cook
Can this be made ahead? Would just assemble it then bake it the next day?
Yes, just don’t put the crackers on, wait till you are ready to cook it to do that step
Fixed for cookout. All was eaten. Said was the best they had ever had. ❤️❤️
I need to double this recipe as well, how long did you cook it when doubled? Thanks😊
I did something I usually don’t do. I followed the recipe and doubled it. Great recipe. Good texture. It was a hit!
Can you freeze?
laughing: I am going to make it exactly as described, sounds perfect!
Can this be doubled and baked in a 9×13?
I made it just as recipe called but I added a can of diced green chillies. It turned out great
Yum! I will have to add some green chillies the next time. Thanks for the suggestion!
Can I use a combination of yellow squash and zucchini for this recipe?
I have made this with zucchini and squash. It works well with either. Great, versatile recipe!
Excellent. I have never made a casserole EVER and this turned out great. My only changes were
1. I used 2 cups of cheese
2. Didn’t have any Ritz so I used a cheesy cracker
3. I used 3 tlbs of butter
Thank you so much 🙂
Glad you enjoyed it Sue!