Summer squash casserole is a comforting Southern recipe that makes the most of fresh seasonal vegetables. Tender slices of yellow squash and zucchini are blended with a creamy mixture of sour cream, soup, carrots, and crunchy water chestnuts, then finished with a buttery herb-seasoned stuffing topping. After baking, the casserole develops a creamy interior and a crisp, golden crust that makes it a welcome addition to almost any meal. Whether you are hosting a holiday dinner, preparing a weekend family meal, or bringing a dish to a neighborhood potluck, this casserole is always a dependable choice.
At Richy Bites, we believe the simplest recipes often become family traditions. Alessia enjoys creating dishes that rely on fresh ingredients, easy techniques, and comforting flavors that make every meal feel a little more special.
Why You’ll Love This Summer Squash Casserole
This summer squash casserole combines fresh vegetables with a rich, creamy filling and a crisp herb stuffing topping that adds wonderful texture. Every bite offers a delicious balance of soft vegetables and buttery crunch.
It is also an incredibly practical recipe. The casserole pairs well with roasted meats, grilled favorites, turkey, ham, and many other main dishes. Since it serves several people, it is ideal for entertaining, holiday gatherings, and family dinners throughout the year.
| Recipe Details | Information |
|---|---|
| Prep Time | 25 minutes |
| Cook Time | 40 minutes |
| Stand Time | 10 minutes |
| Total Time | 1 hour 15 minutes |
| Servings | 8 |
| Difficulty | Easy |
Ingredients You’ll Need
Prepare these ingredients before assembling the casserole.
| Ingredient | Amount |
|---|---|
| Yellow squash | 1½ pounds |
| Zucchini | 1 pound |
| Sweet onion, chopped | 1 small |
| Salt | 2½ teaspoons, divided |
| Grated carrots | 1 cup |
| Cream of chicken soup | 1 can (10¾ ounces) |
| Sour cream | 1 container (8 ounces) |
| Water chestnuts, drained and chopped | 1 can (8 ounces) |
| Herb-seasoned stuffing mix | 1 package (8 ounces) |
| Unsalted butter, melted | ½ cup |
How to Make Summer Squash Casserole
Preheat your oven to 350°F and lightly grease a 13 x 9-inch baking dish. Slice the yellow squash and zucchini into thin rounds. Place them in a large saucepan with the chopped onion and two teaspoons of salt. Cover the vegetables with water, bring everything to a boil, and cook for approximately five minutes. Drain thoroughly to remove as much moisture as possible.
In a large mixing bowl, stir together the grated carrots, cream of chicken soup, sour cream, chopped water chestnuts, and the remaining salt until smooth. Add the cooked squash mixture and gently combine everything. In another bowl, mix the herb-seasoned stuffing with the melted butter until evenly coated. Spread half of the stuffing across the bottom of the prepared baking dish. Spoon the squash mixture over the stuffing layer, then cover it with the remaining stuffing mixture. Bake for 30 to 35 minutes, or until the filling is bubbling and the top is golden brown. If needed, loosely cover the casserole with aluminum foil during the final part of baking to prevent excessive browning. Let the casserole rest for about 10 minutes before serving.
Helpful Tips
Drain the cooked vegetables carefully before mixing them with the creamy ingredients. Removing extra liquid helps create a thicker casserole with a better texture.
Fresh squash harvested during the summer season provides excellent flavor, although good-quality squash from the grocery store also produces great results.
For the crispiest topping, spread the stuffing evenly across the surface without pressing it into the filling.
If you enjoy a cheesier casserole, stir a handful of shredded cheddar cheese into the filling before transferring it to the baking dish.
Recipe Details
| Feature | Description |
|---|---|
| Flavor | Buttery, creamy, savory |
| Texture | Tender vegetables with a crispy topping |
| Occasion | Holidays, family dinners, potlucks, cookouts |
| Cuisine | Southern American |
| Storage | Refrigerate for up to 4 days |
Nutritional Information Per Serving
| Nutrient | Amount |
|---|---|
| Calories | Approximately 310 |
| Protein | 7 g |
| Carbohydrates | 27 g |
| Fat | 20 g |
| Saturated Fat | 10 g |
| Fiber | 3 g |
| Sugar | 6 g |
| Sodium | 720 mg |
Frequently Asked Questions
Can I use only yellow squash instead of zucchini?
Yes. The casserole tastes wonderful using only yellow squash. Including zucchini simply adds extra color and another layer of texture.
Can I prepare summer squash casserole ahead of time?
Absolutely. Assemble the casserole, cover it tightly, and refrigerate it for up to one day before baking. If baking directly from the refrigerator, increase the baking time slightly to ensure the center heats completely.
Can I substitute the cream of chicken soup?
Yes. Cream of mushroom soup or cream of celery soup can easily replace the cream of chicken soup while still producing a creamy, flavorful casserole.
How do you store summer squash casserole and keep it fresh?
Allow the casserole to cool before placing leftovers in an airtight container. Store it in the refrigerator for up to four days and reheat until thoroughly warmed before serving.
Storage Instructions
Transfer leftover summer squash casserole to a sealed container once it has cooled completely. Refrigerate for up to four days. If you would like to store it longer, freeze the casserole for up to two months in a freezer-safe container. Defrost it overnight in the refrigerator before reheating. Warming it in the oven helps restore the crisp stuffing topping while keeping the filling creamy.
Print
Summer Squash Casserole, Classic Southern Comfort Side Dish
- Total Time: 1 hour 15 minutes
- Yield: 8 servings 1x
Description
This Summer Squash Casserole is a classic Southern side dish made with tender yellow squash, zucchini, sweet onion, carrots, a creamy filling, and a buttery herb-seasoned stuffing topping. It is comforting, easy to prepare, and perfect for family dinners, holidays, potlucks, and cookouts.
Ingredients
1 1/2 pounds yellow squash
1 pound zucchini
1 small sweet onion, chopped
2 1/2 teaspoons salt, divided
1 cup grated carrots
1 can cream of chicken soup, 10 3/4 ounces
1 container sour cream, 8 ounces
1 can water chestnuts, drained and chopped, 8 ounces
1 package herb-seasoned stuffing mix, 8 ounces
1/2 cup unsalted butter, melted
Instructions
1. Preheat the oven to 350°F and lightly grease a 13 x 9-inch baking dish.
2. Slice the yellow squash and zucchini into thin rounds.
3. Place the squash, zucchini, chopped onion, and 2 teaspoons of salt in a large pot.
4. Cover the vegetables with water and bring to a boil over medium-high heat.
5. Cook for about 5 minutes, then drain the vegetables thoroughly.
6. In a large mixing bowl, combine the grated carrots, cream of chicken soup, sour cream, chopped water chestnuts, and remaining 1/2 teaspoon salt.
7. Fold the cooked squash mixture into the creamy filling until evenly combined.
8. In a separate bowl, mix the herb-seasoned stuffing with the melted butter.
9. Spread half of the stuffing mixture across the bottom of the prepared baking dish.
10. Spoon the squash mixture evenly over the stuffing layer.
11. Top with the remaining buttered stuffing mixture.
12. Bake for 30 to 35 minutes, or until the filling is bubbly and the top is golden brown.
13. If the topping browns too quickly, loosely cover the casserole with foil during the final 10 to 15 minutes.
14. Let the casserole rest for 10 minutes before serving.
Notes
Drain the cooked squash and zucchini very well to prevent a watery casserole.
For a vegetarian variation, replace the cream of chicken soup with cream of mushroom or cream of celery soup.
For extra richness, add a small amount of shredded cheddar cheese to the creamy filling.
Store leftovers in an airtight container in the refrigerator for up to 4 days.
Freeze cooled casserole in a freezer-safe container for up to 2 months.
Thaw frozen casserole overnight in the refrigerator before reheating.
- Prep Time: 25 minutes
- Cook Time: 40 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: Southern American
Nutrition
- Serving Size: 1 serving
- Calories: 310
- Sugar: 6 g
- Sodium: 720 mg
- Fat: 20 g
- Saturated Fat: 10 g
- Unsaturated Fat: 10 g
- Trans Fat: 0 g
- Carbohydrates: 27 g
- Fiber: 3 g
- Protein: 7 g
Conclusion
Summer squash casserole is a classic comfort food that celebrates the flavors of fresh vegetables with a creamy filling and a buttery, seasoned topping. Its simple preparation, satisfying texture, and dependable flavor make it an excellent side dish for everything from casual family dinners to festive holiday meals. Whether you are looking for a delicious way to enjoy garden squash or need a reliable recipe for your next gathering, this casserole is sure to become a favorite that everyone will look forward to sharing.