why make this recipe
Creamy Baked Onions with Asiago Cheese is a delightful dish that brings warmth and comfort to any table. The sweet and tender baked onions combined with the rich cream and sharp cheese create a heavenly flavor. It’s perfect as a side dish for family gatherings or a cozy dinner at home. Plus, it’s simple to make and uses basic ingredients that you likely already have in your pantry!
how to make Creamy Baked Onions with Asiago Cheese
Ingredients:
- 4 large yellow onions, peeled and sliced into ¼-inch rounds
- Olive oil, for drizzling
- ½ teaspoon fresh thyme, chopped
- Salt and pepper, to taste
- 1 cup heavy cream
- 2 teaspoons Dijon mustard
- ½ cup Asiago cheese, grated
Directions:
- Preheat your oven to 375°F (190°C).
- Arrange the sliced onions in a baking dish. Drizzle them lightly with olive oil and sprinkle with thyme, salt, and pepper.
- In a bowl, mix the heavy cream and Dijon mustard until smooth.
- Pour the cream mixture over the onions, ensuring they are well coated.
- Sprinkle the grated Asiago cheese evenly over the top.
- Cover the baking dish with foil and bake for 30 minutes.
- Remove the foil and bake for an additional 15 minutes, or until the onions are tender and the cheese is golden and bubbly.
- Let it cool slightly before serving.
how to serve Creamy Baked Onions with Asiago Cheese
Serve the Creamy Baked Onions hot from the oven as a side dish. They pair wonderfully with roasted meats, grilled chicken, or a simple green salad. You can also enjoy them on their own for a comforting vegetarian meal.
how to store Creamy Baked Onions with Asiago Cheese
If you have leftovers, let the dish cool completely. Transfer any remaining onions to an airtight container and refrigerate. They can be stored for up to 3 days. To reheat, simply place them in the oven at 350°F (175°C) until warmed through.
tips to make Creamy Baked Onions with Asiago Cheese
- Make sure to slice the onions evenly for uniform cooking.
- Feel free to adjust the amount of Asiago cheese based on your taste preference.
- For extra flavor, you can add garlic or sauté the onions briefly before baking.
- If you prefer a lighter version, you can replace the heavy cream with half-and-half.
variation
You can experiment with different types of cheese, such as Parmesan or Gruyère, for a unique twist. Adding sautéed mushrooms or spinach can also enhance the dish and make it even more delicious.
FAQs
Can I use a different type of onion?
Yes, you can use sweet onions, red onions, or even shallots for different flavors.
Can I prepare this dish in advance?
Absolutely! You can assemble everything a day ahead and refrigerate it until you’re ready to bake. Just add a few extra minutes to the baking time if going straight from the fridge.
Is this dish gluten-free?
Yes, this recipe is gluten-free as long as you use a gluten-free Dijon mustard.

Creamy Baked Onions with Asiago Cheese
Ingredients
Onions
- 4 large large yellow onions, peeled and sliced into ¼-inch rounds Use sweet or red onions for different flavors.
Seasonings
- 1 tablespoon Olive oil, for drizzling Drizzle lightly over onions.
- ½ teaspoon fresh thyme, chopped Feel free to adjust to taste.
- To taste Salt and pepper
Cream Mixture
- 1 cup heavy cream Can be replaced with half-and-half for a lighter version.
- 2 teaspoons Dijon mustard Ensure it's gluten-free if necessary.
Cheese
- ½ cup Asiago cheese, grated Can substitute with Parmesan or Gruyère.
Instructions
Preparation
- Preheat your oven to 375°F (190°C).
- Arrange the sliced onions in a baking dish.
- Drizzle them lightly with olive oil and sprinkle with thyme, salt, and pepper.
- In a bowl, mix the heavy cream and Dijon mustard until smooth.
- Pour the cream mixture over the onions, ensuring they are well coated.
- Sprinkle the grated Asiago cheese evenly over the top.
Baking
- Cover the baking dish with foil and bake for 30 minutes.
- Remove the foil and bake for an additional 15 minutes, or until the onions are tender and the cheese is golden and bubbly.
- Let it cool slightly before serving.