Parmesan Grilled Sweet Onions
Fire up your grill and elevate your side dishes with these Parmesan Grilled Sweet Onions, a smoky and savory delight perfect for any barbecue or dinner spread! Featuring tender, caramelized rounds of Vidalia or Walla Walla onions, this recipe highlights the natural sweetness of the onions while infusing them with a rich, cheesy topping. Brushed with olive oil and seasoned with garlic powder, salt, and black pepper, each onion slice is grilled to perfection, achieving beautiful char marks and soft, melt-in-your-mouth texture. Finished with a generous sprinkle of parmesan cheese and fresh parsley, these grilled onions are a crowd-pleasing side that pairs seamlessly with steak, chicken, or even veggie mains. Ready in just 40 minutes, this easy yet flavor-packed recipe is a must-try addition to your grilling lineup.
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Recipe Information
Ingredients
- 4 large sweet onions (such as Vidalia or Walla Walla)
- 2 tablespoons olive oil
- 1 teaspoon salt
- 0.5 teaspoon black pepper
- 0.5 teaspoon garlic powder
- 0.5 cup Parmesan cheese (grated)
- 2 tablespoons fresh parsley (chopped)
Instructions
Preheat your grill to medium heat, around 375–400°F (190–200°C).
Peel the sweet onions and slice them horizontally into 1/2-inch-thick rounds, keeping the slices intact.
Brush both sides of the onion slices generously with olive oil to prevent sticking and to promote browning.
Sprinkle the onion slices evenly with salt, black pepper, and garlic powder.
Carefully place the onion slices on the preheated grill. Cook for 12–15 minutes on the first side, or until they develop defined grill marks and soften.
Using a wide spatula, gently flip the onion slices and cook for an additional 10–12 minutes on the other side.
In the last 2–3 minutes of cooking, sprinkle each onion slice with grated Parmesan cheese. Close the grill lid to melt the cheese.
Once the Parmesan has melted and the onions are deeply caramelized, remove them from the grill using the spatula and transfer to a serving platter.
Garnish with chopped fresh parsley and serve immediately for a savory, smoky side dish that complements any meal.
Nutrition Facts
Calories |
287 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 15.4 g | 20% | |
| Saturated Fat | 6.4 g | 32% | |
| Polyunsaturated Fat | 0.0 g | ||
| Cholesterol | 18 mg | 6% | |
| Sodium | 949 mg | 41% | |
| Total Carbohydrate | 24.9 g | 9% | |
| Dietary Fiber | 4.3 g | 16% | |
| Total Sugars | 12.5 g | ||
| Protein | 14.2 g | 28% | |
| Vitamin D | 0.3 mcg | 1% | |
| Calcium | 391 mg | 30% | |
| Iron | 0.6 mg | 3% | |
| Potassium | 404 mg | 9% | |
*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.
