Easy Parmesan Onion Bake
Indulge in the rich and savory flavors of this Easy Parmesan Onion Bake, a crowd-pleasing side dish that’s perfect for any occasion! Made with sweet onions caramelized to perfection and layered with creamy heavy cream, a touch of garlic, and a golden topping of Parmesan cheese and crispy panko breadcrumbs, this dish is the ultimate comfort food. With just 15 minutes of prep time and a handful of pantry staples, this baked onion casserole delivers a luxurious, cheesy texture with a hint of crunch in every bite. Whether you’re serving it alongside roasted meats or as a centerpiece for a vegetarian spread, this versatile dish is guaranteed to impress. Don’t forget the optional garnish of fresh parsley for a pop of color and flavor!
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Recipe Information
Ingredients
- 4 large Sweet onions
- 4 tablespoons Butter
- 1 teaspoon Garlic powder
- 1 teaspoon Salt
- 0.5 teaspoon Black pepper
- 1 cup Heavy cream
- 1.5 cups Grated Parmesan cheese
- 0.75 cup Panko breadcrumbs
- 2 tablespoons Fresh parsley (optional, for garnish)
Instructions
Preheat your oven to 375°F (190°C).
Peel the sweet onions and cut them into 1/4-inch thick slices. Separate the slices into rings and set aside.
Melt the butter in a large skillet over medium heat. Add the onion rings to the skillet and sauté for 5-7 minutes until they begin to soften and turn lightly golden.
Season the onions with garlic powder, salt, and black pepper. Stir well to ensure the seasoning is evenly distributed.
Transfer the sautéed onion rings to a greased 9x13-inch baking dish, spreading them out evenly.
Pour the heavy cream over the onions, making sure they are evenly coated.
In a small bowl, combine the grated Parmesan cheese and panko breadcrumbs. Mix well.
Sprinkle the Parmesan-breadcrumb mixture evenly over the onions.
Place the baking dish in the preheated oven and bake for 30-35 minutes, or until the top is golden brown and bubbly.
Remove the dish from the oven and let it cool for 5 minutes. Garnish with freshly chopped parsley, if desired, and serve warm.
Nutrition Facts
Calories |
2177 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 164.2 g | 211% | |
| Saturated Fat | 97.7 g | 488% | |
| Polyunsaturated Fat | 1.4 g | ||
| Cholesterol | 492 mg | 164% | |
| Sodium | 5062 mg | 220% | |
| Total Carbohydrate | 107.3 g | 39% | |
| Dietary Fiber | 15.5 g | 55% | |
| Total Sugars | 43.1 g | ||
| Protein | 63.3 g | 127% | |
| Vitamin D | 0.2 mcg | 1% | |
| Calcium | 1542 mg | 119% | |
| Iron | 3.9 mg | 22% | |
| Potassium | 1226 mg | 26% | |
*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.
