This Easy Squash Casserole with Ritz Crackers and Sour Cream Will Make You a Holiday Hero
There’s something magical about the smell of buttery Ritz crackers and tender yellow squash bubbling away in the oven. It instantly takes me back to summer Sundays in my grandmother’s Southern kitchen, where casseroles weren’t just meals — they were memories.
I’ve tested dozens of comfort food recipes over the years as a food and cooking writer, but this easy squash casserole with Ritz crackers and sour cream has truly earned a permanent spot on my holiday table. It’s rich, creamy, and covered in a golden, crunchy topping that’s basically irresistible. It’s also surprisingly simple to make — no complicated steps, just real ingredients and a ton of flavor.
If you’re looking for a Southern side dish that wins hearts at every potluck, family dinner, or summer BBQ, this is it. This dish blends nostalgic charm with ease and elegance — and yes, even Paula Deen herself would nod in approval.
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Why You’ll Love This Southern Squash Casserole
When I first made this dish for a friendsgiving gathering, it was supposed to be “just another side.” Instead, it ended up being the most requested recipe of the night — and every holiday since. What makes it so special?
Whether you’re planning for Easter, Thanksgiving, or a casual backyard dinner, this simple, Southern recipe is a guaranteed crowd-pleaser.
Ingredients: Classic Southern Comfort
This dish uses simple ingredients, but each one plays a crucial role in the creamy, crispy, and comforting balance.
Here’s what you’ll need:
Exact Measurements:
This blend of yellow squash, sour cream, and cheddar creates that creamy interior we all crave. The Ritz crackers — buttery and golden — add the perfect crispy topping.
Step-by-Step Instructions
You’ll love how simple this process is. From start to finish, you’ll have this casserole ready in under an hour — and that includes baking time!
Preheat and Prep
1. Preheat your oven to 350°F (175°C).
2. Lightly grease a 9x13-inch baking dish.
Sauté the Veggies
3. In a large skillet, heat 1 tablespoon olive oil over medium heat.
4. Add 4 cups sliced yellow squash and 1/2 cup chopped onion. Cook for 6–8 minutes, or until squash is just tender. Drain any excess liquid and let cool slightly.
Mix the Filling
5. In a large bowl, combine:
- Cooked squash and onion
- 1 cup sour cream
- 1 cup shredded cheddar cheese
- 1 beaten egg
- 1/2 tsp salt and 1/4 tsp black pepper
Assemble the Casserole
6. Transfer the squash mixture into your greased baking dish.
7. In a small bowl, mix 1 sleeve crushed Ritz crackers with 1/4 cup melted butter.
8. Sprinkle the buttery cracker mixture evenly over the top.
Bake
9. Bake uncovered for 25–30 minutes, or until the top is golden brown and the casserole is bubbling around the edges.
10. Let rest for 5–10 minutes before serving.
Pro tip from my kitchen: That rest time is important! It helps the casserole set up and makes serving easier (especially if you're going for those picture-perfect slices).
The Best Side Dish for Every Occasion
This isn’t just a holiday dish — though it does shine on the Thanksgiving or Easter table. It’s also perfect for:
The combination of a fresh veggie base and indulgent flavors makes it the best of both worlds — hearty and healthy, comforting yet refreshing.
3 Must-Have Kitchen Tools to Make This Recipe Easier
As a food writer who’s tested hundreds of recipes, I can confidently say: the right tools make all the difference. Here are three products I absolutely recommend if you’re making this dish (and want it to be even easier!).
1. Pyrex Deep 9x13 Glass Baking Dish with Lid
This glass baking dish is deeper than standard pans, which is perfect for casseroles like this one. It bakes evenly and comes with a BPA-free plastic lid, making it easy to store leftovers.
Why I love it: It’s durable, dishwasher-safe, and keeps your casserole from bubbling over.
Get one for your kitchen and never deal with foil-wrapped leftovers again!
Slicing 4 cups of squash by hand? Not necessary. This mandoline slicer makes quick, uniform slices — and it's a total time-saver when you're prepping for guests.
Why I love it: Multiple thickness settings and a safety guard keep things quick and safe.
Slice your prep time in half — grab this slicer and thank yourself later.
3. Ritz Crackers Family Pack (Box of 4 Sleeves)
You’re going to want extras — trust me. Between snacking and topping this casserole, Ritz crackers disappear fast. This family-size pack ensures you always have enough for a buttery topping.
Why I love it: Classic, flaky flavor that’s unmatched in casseroles and snacks alike.
Stock up and keep the crunch coming — grab your box now!
3 Chef's Tips to Elevate Your Casserole
Want to make your squash casserole extra memorable? Here are a few pro-level ideas I’ve picked up along the way:
1. Add a Hint of Warm Spice
A pinch of nutmeg or cayenne can enhance the depth of flavor and give your casserole a unique Southern kick.
2. Use Sharp Cheddar
Sharp cheese balances the creaminess of the sour cream and complements the buttery Ritz topping beautifully.
3. Let It Rest
Don’t skip that 5–10 minute resting period. It’s essential for structure and flavor melding, especially if you're serving it at a holiday meal.
FAQs: Everything You Need to Know
Can I make this ahead of time?
Absolutely! Assemble the casserole (without the cracker topping), cover, and refrigerate for up to 24 hours. Add the topping just before baking.
Can I freeze it?
Yes — but freeze it before baking for best results. Wrap tightly with plastic wrap and foil. Bake from frozen at 350°F for about 45–50 minutes.
What can I use instead of sour cream?
Greek yogurt is a great substitute if you want to lighten it up while still keeping the tang and creaminess.
Can I use zucchini instead of squash?
Yes! Just make sure to salt and drain the zucchini beforehand to avoid excess moisture.
Final Thoughts: Make It Once, Crave It Forever
This easy squash casserole with Ritz crackers and sour cream isn’t just a side dish — it’s a comfort-filled memory in the making. Whether you’re making it for your first holiday dinner or a sunny summer supper on the porch, this Southern classic brings the warmth of tradition and the ease of modern cooking together in one unforgettable bite.
As a food writer, it’s recipes like this that remind me why I fell in love with writing about food in the first place. There’s power in simplicity. And sometimes, all it takes to become a holiday hero is a little squash, a lot of love, and a sleeve of buttery crackers.
If you try this recipe, I’d love to hear how it turned out. Did you add your own twist? Was it the star of your table? Leave a comment below or tag me on Instagram — I’d be thrilled to see your version.
Until then, happy baking — and happy gathering!
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