Aunt Fanny’s Summer Squash Casserole

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If there is one recipe that always showed up on Southern tables in the summer, it was Aunt Fanny’s summer squash casserole. This old-fashioned casserole is the kind of recipe passed around on faded recipe cards and served at family reunions, church suppers, and Sunday dinners.

Tender yellow squash is cooked down, mixed with a few basic ingredients and topped with buttery bread crumbs, then baked until golden and bubbly. It is simple, comforting, and one of the best ways to use up all that fresh summer squash from the garden.

Whether you are making it for a potluck, or a holiday meal, this classic Southern squash casserole always disappears fast.

Why You’ll Love Aunt Fanny’s Summer Squash Casserole

• Old-fashioned Southern comfort food
• Great way to use fresh summer squash
• Easy to make ahead
• Perfect for potlucks, family dinners, and holidays
• Vegetarian-friendly

History of the Recipe

For most of my life I thought I had a distant relative named Fanny. I grew up with this recipe. My mother and grandmother often made this recipe. So I always just assumed Fanny was somehow related to us. Wow, was I so wrong. This recipe doesn’t belong to my family. It’s just something they picked up along the way (probably published in the local news paper or church cookbook). To prevent further cultural appropriation I want to share the history behind this recipe.

Aunt Fanny’s Cabin

The restaurant, Aunt Fanny’s Cabin, was opened in 1941 in a small town outside of Atlanta, Georgia. The white family that owned it named their restaurant after an African American woman, Fanny Williams (1868-1949), who was the family’s cook. The restaurant used all of Fanny’s recipes and she was the head cook there. It soon became a very popular dinning destination.

After Fanny Williams death in 1949 the restaurant remained open until it closed for good in 1992. The “Old South” theme that the restaurant embodied portrayed racist stereotypes. The restaurant was decorated with “framed advertisements for enslaved people” that hung on the walls and part of the restaurant’s gimmick was having young black employees that wore wooden menu boards around their necks and dance on milk crates.

The Life of Fanny Williams

Little is known about Fanny Williams life. It’s unknown how much she was compensated for the use of her name and recipes but it has been reported that she was able to use the money and local fame she earned from the restaurant to help support her African American community by donating funds to help build a local Black hospital and church. In 2025 the city of Smyrna unveiled a bronze statue of Fanny Williams posed with a shovel to represent her “groundbreaking” accomplishments.

Sharing this recipe now is my way of honoring Fanny Williams’ culinary skills.

What Is Summer Squash Casserole?

Southern summer squash casserole is an old fashioned baked side dish. It’s made with yellow squash, onion, eggs, just a little butter and a bread crumb topping. The squash becomes tender and creamy while the topping turns crisp and golden.

This version is inspired by the kind of recipe Aunt Fanny would have made decades ago: simple ingredients, plenty of flavor, and no fancy steps.

Ingredients

• 3 pounds yellow summer squash, sliced about 1/4 inch thick
• 1/2 cup white onion, finely diced
• 1/2 cup melted butter, divided
• 2 eggs, beaten
• 1 tablespoon sugar
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 1/2 cup bread crumbs

How to Make Aunt Fanny’s Summer Squash Casserole

1. Cook the squash

Slice yellow squash into 1/4 inch thick slices and boil until tender. Boil the squash for about 10 minutes.

Drain very well. This is important so the casserole does not become watery.

2. Mix the filling

In a large bowl, stir together:

• Cooked squash
• Onion
• Eggs
• 2 tablespoons of melted butter (half of the butter)
• Sugar
• Salt
• Pepper

Mix until everything is combined.

3. Add to baking dish

Spread the mixture into a small baking dish.

4. Make the topping

Mix the bread crumbs with the remaining 2 tablespoons of melted butter. Sprinkle over top the casserole.

5. Bake

Bake at 350°F for 45 minutes, until hot and bubbly and the top is golden brown.

Let sit for about 5 minutes before serving.

Tips for the Best Squash Casserole

• Don’t Overcook the Squash: You want the squash to be tender but not complete mush before it goes into the oven. Aim for “fork-tender” during the boiling stage since it will continue to cook while baking.
• Drain the Squash Well: Yellow squash has a high water content. After boiling, let it sit in a colander for at least 5 to 10 minutes. For an extra creamy (and never watery) consistency, pat it dry with paper towels before mixing it with the other ingredients.
• Texture Variations: While breadcrumbs are traditional, you can swap them for crushed buttery crackers (like Ritz) or saltine crackers for an extra-crunchy topping.

What to Serve With Summer Squash Casserole

This casserole pairs perfectly with:

• Pinto beans
• Butter beans
• Sliced tomatoes
• Green beans
• Mashed potatoes
• Collard Greens
• Baked Macaroni and Cheese

It is also perfect for Thanksgiving, Easter, and summer potlucks.

Can You Make It Ahead?

Yes! Assemble the casserole up to 24 hours ahead and store it covered in the refrigerator. Wait to add the bread crumbs until just before baking so it stays crisp.

How to Store Leftovers

Store leftover casserole covered in the refrigerator for up to 4 days.

Reheat in the oven at 350°F until warmed through, or microwave individual servings.

The Ultimate Southern Squash Side Dish

Aunt Fanny’s summer squash casserole is one of those timeless Southern recipes that never goes out of style. It’s very simple to make and captures that fresh summer squash flavor. Whether you are making it for a family dinner or carrying it to a potluck, this comforting casserole is sure to become a favorite at your table.

Looking for the perfect pairing? Check out my full list of 20+ vegetarian Southern side dishes for more easy, plant-based comfort food classics.