Old-Fashioned Tennessee Sweet Onion Casserole
This sweet onion casserole combines the caramelized goodness of sweet onions with a perfect blend of herbs, two types of melted cheese, and a satisfyingly crunchy topping.
Servings: 8 servings
Calories: 263kcal
Ingredients
- 2 ½ lb. sweet onions about 3 large onions, sliced crosswise into ¼-in.-thick slices and separated into rings
- 1 tsp. dried thyme
- 1 tsp. dried parsley flakes
- 1 tsp. garlic salt
- ½ tsp. dried oregano
- ½ tsp. dry mustard
- ¼ tsp. cayenne pepper
- ¼ cup salted butter cut into ¼-in.-thick pieces
- 4 oz. mild Cheddar cheese shredded (about 1 cup)
- 4 oz. smoked Gouda cheese shredded (about 1 cup)
- ¼ tsp. smoked paprika
- ½ cup bread crumbs coarsely grated from a rustic bread loaf or baguette.
- 2 tablespoon melted unsalted butter
Instructions
- Warm the oven: Preheat oven to 350°F. Coat a 13- x 9-inch baking dish with cooking spray. Gather your ingredients.
- Season the onions: Place onions in a large bowl. Sprinkle with thyme, parsley, garlic salt, oregano, mustard, and cayenne pepper; toss gently to coat. Arrange evenly in the prepared baking dish.
- Add toppings and bake: Arrange butter evenly over onions and sprinkle with Cheddar and Gouda. Cover with aluminum foil, and bake in a preheated oven until onions are soft and sides are bubbly about 40 minutes.
- Mix the 2 Tablespoons melted butter with the fresh bread crumbs. Set aside.
- Finish baking: Remove foil. Sprinkle with the smoked paprika and the buttered bread crumbs.
- Bake at 350°F until top is golden, about 30 minutes.
Nutrition
Calories: 263kcal | Carbohydrates: 17g | Protein: 9g | Fat: 18g | Saturated Fat: 11g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 0.3g | Cholesterol: 53mg | Sodium: 558mg | Potassium: 247mg | Fiber: 2g | Sugar: 8g | Vitamin A: 669IU | Vitamin C: 8mg | Calcium: 268mg | Iron: 2mg