Southern Squash Casserole

Freshly baked Southern Squash Casserole in a white baking dish with a golden Ritz cracker topping, creamy squash and cheese visible beneath, set on a rustic wooden table with a serving spoon.

🌽 Southern Squash Casserole

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This Southern Squash Casserole is a creamy, cheesy classic that brings back memories of Sunday suppers and family gatherings. Tender yellow squash and sautéed onions are folded into a rich, buttery sauce, topped with golden Ritz cracker crumbs, and baked until bubbly perfection. It’s the kind of comforting side dish that disappears first at every potluck! 💛


🧑‍🍳 Equipment Needed

  • Large skillet

  • Colander

  • Mixing spoon

  • 9×13-inch buttered casserole dish

  • Measuring cups and spoons

  • Chef’s knife and cutting board


Fresh yellow squash, whole and sliced into medallions, arranged on a rustic wooden table with crumbs and herbs scattered around, bathed in warm natural light.
Beautiful, garden-fresh yellow squash — the key to that creamy, flavorful Southern Squash Casserole.

🥒 Ingredients

  • 8 cups raw yellow squash, sliced into medallions (or chunked if preferred)

  • 4 tbsp butter, divided

  • ½ tsp salt

  • ½ tsp black pepper

  • ¼ tsp garlic powder

  • 1 large onion, chopped

  • ½ cup green bell pepper, chopped

  • 1 tbsp all-purpose flour

  • ½ cup milk

  • 8 oz sour cream

  • 1½ cups shredded cheddar cheese, divided

  • 1 cup crushed Ritz crackers

  • (Optional) 2–3 tbsp melted butter for tossing with crackers

  • (Optional) Pinch of cayenne or ¼ tsp paprika for added flavor


🍳 Instructions

  1. Sauté the Vegetables
    In a large skillet, melt 2 tablespoons butter over medium heat. Add onion, green pepper, and squash. Season with salt, pepper, and garlic powder. Cook for about 10–12 minutes, until tender.

  2. Drain and Mash
    Transfer the mixture to a colander and let it drain well. Lightly mash with a spoon to release extra moisture, then pour into a buttered casserole dish.

  3. Make the Cream Sauce
    Return the skillet to medium heat and melt the remaining 2 tablespoons butter. Stir in flour and cook for 1 minute to remove the raw taste. Slowly whisk in milk, stirring constantly until smooth and thickened. Remove from heat and stir in sour cream (and optional paprika or cayenne).

  4. Combine Everything
    Pour the cream sauce over the drained squash and gently stir to coat. Add half of the shredded cheese and mix until just combined.

  5. Add Toppings
    Sprinkle the remaining cheddar cheese evenly over the top. Toss the crushed Ritz crackers with 2–3 tablespoons melted butter and sprinkle over the casserole.

  6. Bake
    Bake at 350°F for 25–30 minutes, or until bubbly and golden brown on top.


🍽️ Serving Suggestions

A warm serving of Southern Squash Casserole on a white plate, showing creamy layers of yellow squash and melted cheddar under a golden buttery cracker topping, with steam rising and a parsley garnish.
Fresh from the oven — creamy, cheesy Southern Squash Casserole served warm and ready to enjoy.

This cozy casserole pairs wonderfully with:

  • Fried chicken, meatloaf, or pork chops

  • Country-style green beans

  • Mashed potatoes or cornbread

  • Holiday mains like ham or turkey


💡 Expert Tips

  • Slice squash evenly for even cooking.

  • Don’t skip draining — too much moisture makes the casserole runny.

  • Add a pinch of sugar if your squash is slightly bitter.

  • This dish reheats beautifully for leftovers!


❄️ Storage & Reheating

  • Refrigerate: Up to 4 days in an airtight container.

  • Reheat: Warm in oven at 325°F or microwave until hot.

  • Freeze: Assemble but don’t bake; wrap tightly and freeze up to 2 months. Thaw overnight before baking as directed.


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Freshly baked Southern Squash Casserole in a white baking dish with a golden Ritz cracker topping, creamy squash and cheese visible beneath, set on a rustic wooden table with a serving spoon.

🌽 Southern Squash Casserole

This Southern Squash Casserole is the ultimate comfort food side dish — creamy, cheesy, and topped with buttery Ritz crackers for a little crunch in every bite. Tender yellow squash, onions, and bell peppers are folded into a rich sour cream sauce and baked until golden and bubbly. Perfect for holidays, potlucks, or Sunday dinners, this old-fashioned favorite brings that cozy Southern flavor everyone loves!
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Course Side Dish
Cuisine American, Southern Cooking
Servings 8
Calories 290 kcal

Equipment

  • Large Skillet
  • Colander
  • Mixing Spoon
  • 9 X 13 inch casserole dish
  • measuring cups and spoons
  • Chef's Knife and Cutting Board

Ingredients
  

  • 8 cups raw yellow squash sliced into medallions (or chunked if preferred)
  • 4 tbsp butter divided
  • ½ tsp salt
  • ½ tsp black pepper
  • ¼ tsp garlic powder
  • 1 large onion chopped
  • ½ cup green bell pepper chopped
  • 1 tbsp all-purpose flour
  • ½ cup milk
  • 8 oz sour cream
  • cups shredded cheddar cheese divided
  • 1 cup crushed Ritz crackers
  • Optional 2–3 tbsp melted butter for tossing with crackers
  • Optional Pinch of cayenne or ¼ tsp paprika for added flavor

Instructions
 

  • In a large skillet, melt 2 tablespoons butter over medium heat. Add onion, green pepper, and squash. Season with salt, pepper, and garlic powder. Cook for about 10–12 minutes, until tender.
  • Transfer the mixture to a colander and let it drain well. Lightly mash with a spoon to release extra moisture, then pour into a buttered casserole dish.
  • Return the skillet to medium heat and melt the remaining 2 tablespoons butter. Stir in flour and cook for 1 minute to remove the raw taste. Slowly whisk in milk, stirring constantly until smooth and thickened. Remove from heat and stir in sour cream (and optional paprika or cayenne).
  • Pour the cream sauce over the drained squash and gently stir to coat. Add half of the shredded cheese and mix until just combined.
  • Sprinkle the remaining cheddar cheese evenly over the top. Toss the crushed Ritz crackers with 2–3 tablespoons melted butter and sprinkle over the casserole.
  • Bake at 350°F for 25–30 minutes, or until bubbly and golden brown on top.

Notes

Nutritional values provided are estimates only and are calculated based on general nutritional data for the listed ingredients. Actual values may vary depending on the specific brands, measurements, and preparation methods used. For precise dietary information, please consult a registered dietitian or use a verified nutrition calculator with the exact ingredients you use.

Nutrition

Calories: 290kcalCarbohydrates: 14gProtein: 8gFat: 23gSaturated Fat: 13gPolyunsaturated Fat: 2gMonounsaturated Fat: 6gCholesterol: 60mgSodium: 420mgPotassium: 290mgFiber: 1gSugar: 4gVitamin A: 640IUVitamin C: 15mgCalcium: 175mgIron: 0.8mg
Keyword baked squash, Ritz cracker topping, southern comfort food side dishes, Southern squash casserole, squash casserole, yellow squash recipe
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