Easy Vidalia Onion Casserole

Creamy, savory, and irresistibly golden, this Easy Vidalia Onion Casserole is a comforting side dish that elevates any meal! Made with naturally sweet Vidalia onions, this recipe combines caramelized onion richness with tangy sour cream and gooey melted cheddar for a flavor-packed base. Topped with a buttery, crumbly cracker crust that bakes to crispy perfection, this casserole delivers a delightful mix of textures in every bite. Ready in just 50 minutes with minimal prep, it’s an ideal dish for busy weeknights or holiday gatherings. Serve it alongside roasted meats or as a vegetarian main, and watch it disappear from the table! Perfect for onion lovers and a brilliant way to showcase Vidalia onions, this recipe is sure to become a crowd-pleasing favorite.

Nutriscore Rating: 54/100

Prep Time:15 mins

Cook Time:35 mins

Total Time:50 mins

Servings: 6

Ingredients

• 4 large Vidalia onions
• 4 tablespoons unsalted butter
• 1 cup sour cream
• 1.5 cups shredded cheddar cheese
• 0.5 teaspoons salt
• 0.25 teaspoons black pepper
• 1.5 cups buttery round crackers
• 3 tablespoons unsalted butter (for topping)

Directions

Step 1

Preheat your oven to 350°F (175°C) and butter a 2-quart casserole dish.

Step 2

Peel and slice the Vidalia onions into thin rounds.

Step 3

In a large skillet, melt 4 tablespoons of unsalted butter over medium heat. Add the onions and sauté them for 10–12 minutes, stirring occasionally, until they become soft and translucent.

Step 4

Transfer the sautéed onions to a large mixing bowl. Stir in the sour cream, shredded cheddar cheese, salt, and black pepper until evenly combined.

Step 5

Pour the onion mixture into the prepared casserole dish, spreading it out evenly.

Step 6

Crush the buttery round crackers in a resealable bag or food processor until they have a coarse, crumbly texture. Melt 3 tablespoons of butter and mix it with the crushed crackers in a small bowl.

Step 7

Sprinkle the buttered crackers evenly over the onion mixture in the casserole dish.

Step 8

Bake the casserole in the preheated oven for 25–30 minutes, or until the top is golden and bubbly.

Step 9

Remove the casserole from the oven and let it cool for 5 minutes before serving. Enjoy!

Nutrition Facts

Serving size	1656.6 grams (1656.6g)

Amount per serving	% Daily Value*
Calories	3714

Total Fat 250.30g	321%
Saturated Fat 139.10g	696%
Polyunsaturated Fat NaNg
Cholesterol 514mg	171%
Sodium 5132mg	223%
Total Carbohydrate 318.30g	116%
Dietary Fiber 13.70g	49%
Total Sugars 55.40g
Protein 81.80g	164%

Vitamin D 21IU	105%
Calcium 1724mg	133%
Iron 8mg	47%
Potassium 1418mg	30%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 58.5%

Protein: 8.5%

Carbs: 33.0%