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Southern Sweet Onion Casserole

Melt-in-Your-Mouth Southern Sweet Onion Casserole Delight

This Southern Sweet Onion Casserole perfectly marries creamy cheese with sweet onions, creating a crowd-pleasing side dish.
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Prep Time 15 minutes
Cook Time 35 minutes
Cooling Time 5 minutes
Total Time 55 minutes
Servings: 8 servings
Course: Dinner
Cuisine: Southern
Calories: 300
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Casserole
  • 4 cups Sweet Onions Best varieties are Vidalia or similar; slice thinly for even cooking.
  • 4 tablespoons Unsalted Butter Adds richness and helps soften the onions.
  • 1 teaspoon Salt Enhances overall flavor.
  • 1 teaspoon Black Pepper Adds mild heat.
  • 1 tablespoon Sugar Optional; enhances sweetness if desired.
  • 1 cup Shredded Sharp Cheddar Cheese Contributes to creamy texture and bold flavor.
  • 1 cup Shredded Mozzarella Cheese Adds additional creaminess.
  • 1 cup Sour Cream Creates a creamy consistency.
  • 3 large Eggs Binds the casserole together.
For the Topping
  • 1 cup Crushed Butter Crackers Creates a crunchy topping.
  • 4 tablespoons Melted Butter Helps achieve a golden, crispy topping.

Equipment

  • skillet
  • baking dish
  • Mixing bowl

Method
 

Step-by-Step Instructions
  1. Prepare the onions by thinly slicing them for even cooking and set aside.
  2. Sauté the onions with melted butter, salt, and pepper for about 15 minutes until soft and lightly golden.
  3. Combine sour cream and beaten eggs into the sautéed onions until smooth.
  4. Fold in half of the shredded cheddar and mozzarella cheeses.
  5. Transfer the mixture into a greased 9x13-inch baking dish and smooth out the top.
  6. Add the remaining cheeses and sprinkle the crushed butter crackers mixed with melted butter on top.
  7. Bake uncovered at 350°F (175°C) for 30-35 minutes until golden and bubbly.
  8. Cool for about 5 minutes before serving.

Nutrition

Serving: 1sliceCalories: 300kcalCarbohydrates: 18gProtein: 9gFat: 22gSaturated Fat: 12gPolyunsaturated Fat: 1gMonounsaturated Fat: 10gCholesterol: 90mgSodium: 600mgPotassium: 200mgFiber: 1gSugar: 2gVitamin A: 15IUVitamin C: 5mgCalcium: 25mgIron: 5mg

Notes

Allow casserole to rest for easier serving. You can substitute crushed butter crackers with gluten-free options.

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