Texas Onion Casserole

Indulge in the ultimate comfort food with this Texas Onion Casserole, a rich and creamy dish that’s sure to become a family favorite. Featuring layers of golden caramelized onions, a velvety cheddar cheese sauce, and a buttery Ritz cracker topping, this casserole delivers irresistible flavor and texture in every bite. Perfect as a hearty side dish or paired with your favorite protein, it’s a celebration of Southern-inspired cooking. Ready in under an hour, this recipe combines pantry staples like yellow onions, cheddar cheese, and sour cream with an effortlessly crisp topping, making it both simple to prepare and deeply satisfying. Whether serving for a weeknight dinner or a holiday feast, this Texas Onion Casserole will steal the spotlight with its savory, cheesy goodness.

Nutriscore Rating: 55/100

Prep Time:15 mins

Cook Time:40 mins

Total Time:55 mins

Servings: 6

Ingredients

• 4 large yellow onions
• 4 tablespoons unsalted butter
• 2 tablespoons all-purpose flour
• 1.5 cups whole milk
• 0.5 cup sour cream
• 2 cups shredded sharp cheddar cheese
• 1.5 cups crushed Ritz crackers
• 1 tablespoon olive oil
• 1 teaspoon dried thyme
• 1 teaspoon kosher salt
• 0.5 teaspoon black pepper
• 0.5 teaspoon garlic powder

Directions

Step 1

Preheat your oven to 350°F (175°C) and lightly grease a 9x13-inch baking dish.

Step 2

Peel and thinly slice the yellow onions into rings.

Step 3

In a large skillet, heat the olive oil and 2 tablespoons of butter over medium heat. Add the onions and sauté for 15-20 minutes, stirring occasionally, until the onions are golden and caramelized. Stir in the dried thyme and set aside.

Step 4

In a medium saucepan, melt the remaining 2 tablespoons of butter over medium heat. Whisk in the flour and cook for 1 minute until lightly golden. Gradually pour in the milk, whisking constantly to create a smooth sauce. Cook for 2-3 minutes until thickened.

Step 5

Reduce the heat to low and stir in the sour cream and 1 cup of shredded cheddar cheese. Mix until the cheese is melted and the sauce is smooth. Add the salt, black pepper, and garlic powder, and mix well.

Step 6

In the prepared baking dish, spread half of the caramelized onions in an even layer. Pour half of the cheese sauce over the onions, then repeat with the remaining onions and cheese sauce.

Step 7

In a separate bowl, combine the crushed Ritz crackers and the remaining 1 cup of cheddar cheese. Sprinkle the mixture evenly over the casserole.

Step 8

Bake in the preheated oven for 20 minutes, or until the top is golden and bubbly.

Step 9

Allow the casserole to rest for 5 minutes before serving. Enjoy as a side dish or pair it with your favorite protein for a delicious meal.

Nutrition Facts

Serving size	1771.9 grams (1771.9g)

Amount per serving	% Daily Value*
Calories	4062

Total Fat 266.10g	341%
Saturated Fat 127.50g	638%
Polyunsaturated Fat 1.70g
Cholesterol 468mg	156%
Sodium 6229mg	271%
Total Carbohydrate 332.90g	121%
Dietary Fiber 19.80g	71%
Total Sugars 78.00g
Protein 106.40g	213%

Vitamin D 161IU	805%
Calcium 2484mg	191%
Iron 16mg	89%
Potassium 1904mg	41%

*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: 57.7%

Protein: 10.3%

Carbs: 32.1%