This Southern baked yellow squash recipe is a delightful way to enjoy a classic Southern vegetable. The combination of tender yellow squash, savory onion, and melted cheddar cheese creates a comforting dish that's perfect for any meal. The golden breadcrumbs on top add a satisfying crunch, making this a crowd-pleaser for both family dinners and potlucks.
While most of the ingredients in this recipe are common, you might need to ensure you have yellow squash on hand, as it may not be a staple in every kitchen. Additionally, cheddar cheese and breadcrumbs are essential for achieving the right texture and flavor, so make sure to pick these up if you don't already have them.

Ingredients For Southern Baked Yellow Squash Recipe
Yellow squash: A tender and slightly sweet vegetable that forms the base of this dish.
Onion: Adds a savory depth of flavor to the recipe.
Cheddar cheese: Provides a rich, creamy taste and helps bind the ingredients together.
Breadcrumbs: Creates a crispy, golden topping for the baked dish.
Butter: Adds richness and helps the breadcrumbs brown.
Salt: Enhances the natural flavors of the ingredients.
Black pepper: Adds a hint of spice and balances the dish.
Technique Tip for This Recipe
When preparing the yellow squash for this recipe, make sure to slice it evenly to ensure uniform cooking. If the slices are too thick, they may not become tender within the specified baking time. Additionally, consider using a mandoline slicer for precision and speed. This will help achieve consistent thickness, allowing the squash to cook evenly and absorb the flavors of the cheddar cheese and breadcrumbs.
Suggested Side Dishes
Alternative Ingredients
yellow squash - Substitute with zucchini: Zucchini has a similar texture and mild flavor, making it a great alternative in baked dishes.
onion - Substitute with shallots: Shallots offer a slightly sweeter and more delicate flavor, which can complement the dish well.
cheddar cheese - Substitute with Monterey Jack cheese: Monterey Jack melts well and has a mild flavor that works nicely in baked recipes.
breadcrumbs - Substitute with crushed crackers: Crushed crackers can provide a similar crunchy texture and can be seasoned to taste.
butter - Substitute with olive oil: Olive oil can be used to add a rich flavor and moisture to the dish while being a healthier fat option.
salt - Substitute with soy sauce: Soy sauce can add a depth of flavor and umami, though it should be used in moderation due to its saltiness.
black pepper - Substitute with white pepper: White pepper has a similar heat but a slightly different flavor profile, which can add a subtle complexity to the dish.
Other Alternative Recipes Similar to This Dish
How to Store or Freeze This Dish
Allow the Southern Baked Yellow Squash to cool completely before storing. This prevents condensation from forming, which can make the dish soggy.
Transfer the cooled yellow squash casserole to an airtight container. If you don't have one, you can use a baking dish covered tightly with aluminum foil or plastic wrap.
Store the container in the refrigerator. The baked squash will stay fresh for up to 3-4 days.
For longer storage, consider freezing. Place the cooled squash casserole in a freezer-safe container or heavy-duty freezer bag. Make sure to remove as much air as possible to prevent freezer burn.
Label the container with the date so you can keep track of how long it has been stored. The baked squash can be frozen for up to 2-3 months.
When ready to reheat, if frozen, thaw the squash casserole in the refrigerator overnight. This ensures even reheating and maintains the texture.
Preheat your oven to 350°F (175°C). Transfer the thawed squash casserole to an oven-safe dish if it’s not already in one.
Cover the dish with aluminum foil to prevent the top from burning while the inside heats up. Bake for about 20-25 minutes, or until the squash is heated through.
If you prefer a crispy top, remove the foil during the last 5 minutes of reheating. This will help the breadcrumbs regain their crunch.
Serve hot and enjoy the delicious Southern Baked Yellow Squash once again!
How to Reheat Leftovers
Oven Method:
- Preheat your oven to 350°F (175°C).
- Place the leftover Southern Baked Yellow Squash in an oven-safe dish.
- Cover the dish with aluminum foil to prevent drying out.
- Heat for about 15-20 minutes, or until the squash is warmed through and the cheese is melted again.
- Remove the foil for the last 5 minutes if you want to crisp up the breadcrumbs topping.
Microwave Method:
- Transfer the leftovers to a microwave-safe dish.
- Cover with a microwave-safe lid or a damp paper towel to retain moisture.
- Heat on medium power for 2-3 minutes, stirring halfway through to ensure even heating.
- Check the temperature and heat for an additional minute if necessary.
Stovetop Method:
- Place a non-stick skillet over medium heat.
- Add a small amount of butter or olive oil to the skillet.
- Add the leftover Southern Baked Yellow Squash to the skillet.
- Stir occasionally and heat for about 5-7 minutes, until the squash is warmed through and the cheese is melted.
Air Fryer Method:
- Preheat your air fryer to 350°F (175°C).
- Place the leftovers in the air fryer basket, ensuring they are spread out evenly.
- Heat for about 5-7 minutes, shaking the basket halfway through to ensure even heating.
- Check to make sure the squash is heated through and the breadcrumbs are crispy.
Best Tools for This Recipe
Oven: Used to bake the squash mixture at a consistent temperature of 350°F (175°C).
Mixing bowl: A large bowl to combine the sliced yellow squash, chopped onion, cheddar cheese, breadcrumbs, melted butter, salt, and black pepper.
Baking dish: A greased dish to transfer the squash mixture into for baking.
Knife: For slicing the yellow squash and chopping the onion.
Cutting board: A surface to safely slice the squash and chop the onion.
Measuring cups: To measure out the ingredients like yellow squash, onion, cheddar cheese, and breadcrumbs.
Measuring spoons: To measure the salt, black pepper, and melted butter accurately.
Wooden spoon: For mixing the ingredients together in the mixing bowl.
Grater: To shred the cheddar cheese if it is not pre-shredded.
Oven mitts: To safely handle the hot baking dish when removing it from the oven.
How to Save Time on Making This Recipe
Pre-slice ingredients: Slice the yellow squash and onion ahead of time and store them in the fridge.
Use pre-shredded cheese: Save time by using pre-shredded cheddar cheese instead of shredding it yourself.
Ready-made breadcrumbs: Opt for store-bought breadcrumbs to cut down on preparation time.
Microwave squash: Soften the yellow squash in the microwave for a few minutes before mixing to reduce baking time.
One-bowl mixing: Mix all ingredients in one large bowl to minimize cleanup.

Southern Baked Yellow Squash Recipe
Ingredients
Main Ingredients
- 4 cups yellow squash, sliced
- 1 cup onion, chopped
- 1 cup cheddar cheese, shredded
- 1 cup breadcrumbs
- 2 tablespoon butter, melted
- 1 teaspoon salt
- 0.5 teaspoon black pepper
Instructions
- Preheat your oven to 350°F (175°C).
- In a large mixing bowl, combine the sliced yellow squash and chopped onion.
- Add the shredded cheddar cheese, breadcrumbs, melted butter, salt, and black pepper. Mix well.
- Transfer the mixture to a greased baking dish.
- Bake in the preheated oven for 30 minutes, or until the top is golden brown and the squash is tender.
- Serve hot and enjoy!
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