Parmesan Onions
Sweet onions baked with Parmesan cheese and butter create a savory, tender side dish perfect for family dinners or entertaining guests. A simple, flavorful treat.
Ingredients
Instructions
- Cut 12 (12-inch) squares of heavy-duty aluminum foil.
- Place an onion half, cut side up, in the center of each foil square.
- Dot each onion with butter; sprinkle with Parmesan cheese, salt, and pepper.
- Wrap each onion securely in the foil.
- Place the wrapped onions on a baking sheet.
- Bake at 350°F for 40 minutes or until tender.
- Serve on lettuce leaves if desired.
Tips & Substitutions
For a richer flavor, try using unsalted butter instead of oleo. You can also experiment with different cheese varieties like Gruyère or cheddar for a unique twist. If you prefer a bit of sweetness, add a drizzle of balsamic glaze before serving. Ensure the onions are tightly wrapped in foil to retain moisture, which promotes even cooking. This dish pairs beautifully with Easy Chocolate Peanut Butter Fudge for dessert.
Serving Suggestions
Serve the Parmesan onions warm on a bed of lettuce leaves for a fresh presentation. They make a delightful side dish alongside grilled meats or roasted vegetables. You can also enjoy them as a topping for burgers or sandwiches, adding a unique twist to your meal. For a complete vegetarian meal, pair with a refreshing salad or browse more vegetarian recipes for inspiration.
Storage & Reheating
Leftover Parmesan onions can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, wrap them in foil and warm them in a preheated oven at 350°F for about 15 minutes, or until heated through. Avoid microwaving, as it can make the onions soggy.
Nutrition & Diet Analysis (per serving)
Each serving of Parmesan Onions contains roughly 7 calories, with 1g protein, 1g carbohydrates, and 0g fat. It is a good source of vitamin C (18% of the Daily Value).
Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.
* % Daily Values based on a 2,000 calorie diet (FDA 2020).
Frequently Asked Questions
Can I use other types of onions for this recipe?
Yes, while Vidalia onions provide a sweet flavor, you can use other sweet varieties like Walla Walla or Maui onions. If you prefer a stronger taste, yellow onions work well too, but adjust cooking time as needed to ensure tenderness.
Can I prepare these onions in advance?
Absolutely! You can prepare the onions and wrap them in foil a few hours before baking. Just keep them refrigerated until you're ready to cook. This makes it convenient for gatherings or busy weeknights when you want to save time.
What can I serve with Parmesan onions?
Parmesan onions are versatile and pair well with grilled meats, roasted chicken, or even as a topping on sandwiches. Consider serving them alongside a light salad or with a side of baked potatoes for a complete meal. They also make a great addition to a charcuterie board.
Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).