Bring a large pot of salted water to a boil. Cut the cauliflower into smaller florets and add them to the water. Cook for 1 to 2 minutes until slightly tender but still crisp.

Drain the cauliflower and set aside.

In a large mixing bowl, combine the cooked cauliflower with the egg, sour cream, salt, black pepper, dried garlic, and cheese. Stir until well combined.

Preheat your oven to 200°C (392°F). Grease a baking dish with olive oil or line it with parchment paper.

Transfer the cauliflower mixture to the baking dish. Drizzle olive oil on top and bake for 20 to 25 minutes, or until golden brown and bubbly.

Once done, remove from the oven and allow to cool slightly before serving.