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Baked Onions with Asiago Cheese

Irresistibly Cheesy Baked Onions with Asiago Delight

Baked Onions with Asiago Cheese are a comforting and flavorful side dish that elevates any meal with its creamy, savory goodness.
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Prep Time 15 minutes
Cook Time 35 minutes
Resting Time 5 minutes
Total Time 50 minutes
Servings: 4 onions
Course: Side Dishes
Cuisine: Italian
Calories: 180
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Onions
  • 4 large yellow or sweet onions choose sweet varieties for a milder taste.
For the Flavor Base
  • 3 tablespoons unsalted butter adds richness without extra salt.
  • 2 tablespoons olive oil enhances the dish’s flavor and aids in browning.
  • 2 cloves garlic minced, infuses the onions with aromatic goodness.
  • 1 teaspoon dried thyme complements the sweet flavor of the onions beautifully.
  • salt to taste, enhances the overall flavor profile.
  • freshly ground black pepper to taste, enhances the overall flavor profile.
For the Topping
  • 1 cup freshly grated Asiago cheese this is the star ingredient that makes these Baked Onions with Asiago Cheese irresistible!
For Garnish
  • fresh parsley chopped (optional), adds a pop of color and freshness.

Equipment

  • Cast-iron skillet
  • baking dish
  • small saucepan

Method
 

Step-by-Step Instructions
  1. Prepare the Onions: Start by peeling the large yellow or sweet onions and trimming the ends slightly. Slice them into 1 to 1½-inch thick rounds.
  2. Preheat the Oven: Preheat your oven to 375°F (190°C). Lightly grease a cast iron skillet or baking dish to prevent sticking.
  3. Mix the Flavor Base: In a small saucepan, melt unsalted butter over low heat. Stir in olive oil, minced garlic, dried thyme, salt, and pepper.
  4. Arrange and Season the Onions: Place onion slices flat in your prepared pan. Apply the garlic butter mixture generously on top.
  5. Bake the Onions: Cover the dish tightly with foil and bake for 30–35 minutes until the onions become fork-tender and translucent.
  6. Add the Asiago Cheese: Once tender, remove the foil and sprinkle a generous amount of Asiago cheese over each onion slice.
  7. Broil for a Golden Finish: Switch your oven to broil and return the dish for 2–4 minutes, watching closely until the cheese melts and turns golden.
  8. Let It Rest and Serve: Allow the dish to rest for a few minutes. Garnish with parsley if desired and serve hot.

Nutrition

Serving: 1onionCalories: 180kcalCarbohydrates: 12gProtein: 5gFat: 14gSaturated Fat: 8gCholesterol: 35mgSodium: 350mgPotassium: 300mgFiber: 1gSugar: 3gVitamin A: 100IUVitamin C: 5mgCalcium: 250mgIron: 0.5mg

Notes

Opt for sweet yellow or Vidalia onions for a milder flavor. Ensure even coating with garlic butter, watch broiling time to avoid burning, and let rest before serving for best results.

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