Mushroom and Cauliflower Gratin

Are you looking for a delicious and satisfying side dish that will impress your dinner guests? Look no further than this Mushroom and Cauliflower Gratin recipe! This dish is a perfect combination of earthy mushrooms, creamy cauliflower, and gooey cheese that will have everyone coming back for seconds. In this blog post, we will walk you through the steps to create this mouthwatering dish, from preparing the ingredients to baking to perfection. So grab your apron and get ready to elevate your next meal with this delectable Mushroom and Cauliflower Gratin!


  • 1 head of cauliflower, cut into florets
  • 1 pound of mushrooms, sliced
  • 3 cloves of garlic, minced
  • 1 onion, diced
  • 2 tablespoons of olive oil
  • 1 cup of vegetable broth
  • 1 cup of heavy cream
  • 1 cup of grated Parmesan cheese
  • 1 teaspoon of thyme
  • Salt and pepper to taste


  1. Preheat your oven to 375°F (190°C).
  2. Heat olive oil in a large skillet over medium heat.
  3. Add the onion and garlic, sauté until fragrant.
  4. Add the mushrooms and cook until they release their juices.
  5. Add cauliflower florets and cook until slightly browned.
  6. Pour in the vegetable broth and simmer until cauliflower is tender.
  7. Add heavy cream, Parmesan cheese, thyme, salt, and pepper.
  8. Transfer the mixture to a baking dish.
  9. Sprinkle extra Parmesan cheese on top.
  10. Bake for 25-30 minutes until the top is golden and bubbly.


Once the Mushroom and Cauliflower Gratin is done baking, let it cool for a few minutes before serving. This dish pairs well with a side salad or some crusty bread. Enjoy!