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Asiago Creamy Baked Onions

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Asiago Creamy Baked Onions are a rich, comforting side dish made with sweet roasted onions, creamy Dijon-infused sauce, and nutty Asiago cheese. This easy yet elegant recipe is perfect for holidays, dinner parties, or pairing with roasted meats.

Ingredients

  • 4 large yellow onions, peeled and sliced into 1/4-inch rounds
  • Olive oil, for drizzling
  • 1/2 teaspoon fresh thyme, chopped
  • Salt and pepper, to taste
  • 1 cup heavy cream
  • 2 teaspoons Dijon mustard
  • 1/2 cup Asiago cheese, grated

Instructions

  1. Preheat & Prep: Preheat oven to 450°F (230°C). Grease a baking dish and arrange onion slices in a single, even layer.
  2. Roast the Onions: Drizzle onions with olive oil and sprinkle with thyme, salt, and pepper. Roast for 20 minutes until softened and lightly caramelized.
  3. Make the Cream Sauce: In a saucepan over medium heat, bring the cream to a simmer. Stir in Dijon mustard and half the Asiago cheese, whisking until smooth.
  4. Assemble the Dish: Pour the cream sauce over the roasted onions. Top with the remaining Asiago cheese.
  5. Bake Again: Cover with foil and bake an additional 20 minutes until bubbling and golden.

Notes

  • Swap Asiago with Gruyère or Fontina for a different cheesy profile.
  • Add toasted breadcrumbs on top before baking for extra crunch.
  • Layer in mushrooms or roasted peppers for added texture and flavor.
  • Red onions can be used for a slightly sweeter variation.
  • Make ahead and refrigerate before baking—just extend the bake time slightly.

Nutrition

Find it online: https://cookedbymaya.com/asiago-creamy-baked-onions/