Description
A comforting cheesy casserole featuring sweet onions, perfect for family gatherings and special occasions.
Ingredients
Scale
- 4 large sweet onions (such as Vidalia, thinly sliced)
- 4 tablespoons unsalted butter
- 1 teaspoon salt
- ½ teaspoon black pepper
- 1 teaspoon sugar (optional, enhances sweetness)
- 1 cup shredded sharp cheddar cheese
- ½ cup shredded mozzarella cheese
- 1 cup sour cream
- 2 large eggs (lightly beaten)
- 1 cup crushed butter crackers (like Ritz)
- 2 tablespoons melted butter (for topping)
Instructions
- Prepare the onions: Begin by preheating your oven to 350°F (175°C).
- Sauté the onions: In a large skillet, melt 4 tablespoons of butter over medium heat. Add the sliced onions along with salt, pepper, and optional sugar. Sauté for about 15 minutes, stirring often, until the onions are soft and lightly golden.
- Mix the filling: Remove the skillet from heat. Stir in the sour cream and beaten eggs until smooth. Next, fold in ½ cup of sharp cheddar and ½ cup of mozzarella cheese, mixing well.
- Assemble the casserole: Transfer the creamy onion mixture into a greased 9×13-inch baking dish. Sprinkle the remaining cheeses over the top.
- Prepare the topping: In a small bowl, combine crushed butter crackers with melted butter. Spread the cracker mixture evenly over the casserole.
- Bake: Place the dish in the oven and bake uncovered for 30–35 minutes, until golden and bubbly.
- Serve: Let it sit for 5 minutes before serving.
Notes
The casserole pairs beautifully as a side with roasted meats or barbecue, and it’s a fantastic addition to holiday meals.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: Southern
Nutrition
- Serving Size: 1 serving
- Calories: 350
- Sugar: 5g
- Sodium: 400mg
- Fat: 12g
- Saturated Fat: 4g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 45g
- Fiber: 3g
- Protein: 15g
- Cholesterol: 30mg
Keywords: casserole, onions, comfort food, cheese, Southern cuisine