Scalloped St Augustine Sweet Onions

Discover the savory decadence of Scalloped St. Augustine Sweet Onions, a comforting casserole that transforms naturally sweet St. Augustine onions into a creamy, cheesy masterpiece. This recipe layers tender slices of sweet onions with a rich, velvety sauce made from sharp cheddar, Parmesan, and a hint of nutmeg, then finishes with a golden, crunchy panko breadcrumb topping for irresistible texture. Perfect as an elegant side dish or a standout vegetarian main, this baked delight comes together in under an hour, making it ideal for both weeknight dinners and holiday gatherings. Garnished with fresh parsley for a pop of color and flavor, this dish is your new go-to for crowd-pleasing comfort food. Keywords: St. Augustine sweet onions, scalloped onions recipe, cheesy onion casserole, savory baked side, creamy onion dish.

Nutriscore Rating: 58/100

Prep Time:20 mins

Cook Time:40 mins

Total Time:60 mins

Servings: 6

Ingredients

• 4 large St. Augustine sweet onions
• 4 tablespoons Unsalted butter
• 3 tablespoons All-purpose flour
• 2 cups Whole milk
• 1 cup Heavy cream
• 1.5 cups Shredded sharp cheddar cheese
• 0.5 cups Grated Parmesan cheese
• 1 teaspoon Salt
• 0.5 teaspoons Black pepper
• 0.25 teaspoons Ground nutmeg
• 0.75 cups Panko breadcrumbs
• 2 tablespoons Fresh parsley, chopped
• 1 tablespoon Olive oil

Directions

Step 1

Preheat your oven to 375°F (190°C) and lightly grease a medium-sized baking dish.

Step 2

Peel and thinly slice the St. Augustine sweet onions into evenly-sized rings, about 1/4 inch thick.

Step 3

In a medium saucepan, melt the unsalted butter over medium heat. Once melted, whisk in the all-purpose flour to create a roux. Cook for 1-2 minutes, stirring constantly, until the mixture is golden and begins to smell nutty.

Step 4

Gradually whisk in the whole milk and heavy cream, making sure to eliminate any lumps. Cook, stirring frequently, for about 4-5 minutes, or until the sauce thickens.

Step 5

Stir in the shredded sharp cheddar cheese and grated Parmesan cheese until fully melted and smooth. Add salt, black pepper, and ground nutmeg, and mix well. Remove from heat.

Step 6

Spread a thin layer of the cheese sauce on the bottom of the prepared baking dish. Layer one-third of the onion slices on top, followed by a layer of the cheese sauce. Repeat this process until all onions and cheese sauce are used, finishing with a layer of sauce.

Step 7

In a small bowl, mix the panko breadcrumbs, fresh parsley, and olive oil until the breadcrumbs are evenly coated. Sprinkle this mixture over the top of the dish.

Step 8

Bake in the preheated oven for 30-40 minutes, or until the top is golden brown and bubbling. If the breadcrumbs are browning too quickly, cover the dish loosely with aluminum foil.

Step 9

Remove from the oven and allow the dish to cool for about 5-10 minutes before serving. Garnish with additional fresh parsley if desired.

Nutrition Facts

Serving size	(1882.8g)

Amount per serving	% Daily Value*
Calories	3015.6

Total Fat 226.7g	0%
Saturated Fat 131.8g	0%
Polyunsaturated Fat 1.9g
Cholesterol 644.2mg	0%
Sodium 4694.5mg	0%
Total Carbohydrate 151.5g	0%
Dietary Fiber 16.2g	0%
Total Sugars 66.3g
Protein 91.6g	0%

Vitamin D 214.7IU	0%
Calcium 2487.1mg	0%
Iron 5.2mg	0%
Potassium 2022.7mg	0%

*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: 67.7%

Protein: 12.2%

Carbs: 20.1%