Believe me, the sauce is what transforms everything here.

Preheat your oven to 375°F (190°C).

In a large skillet over medium heat, cook the chopped bacon until crispy. Remove the bacon and set aside, leaving the bacon fat in the skillet.

Add the sliced leeks to the skillet and sauté in the bacon fat until they are soft and slightly caramelized. Remove from heat.

Lightly grease a round baking pan with olive oil. Arrange a layer of cauliflower slices on the bottom.

Sprinkle half of the bacon and leeks over the cauliflower, followed by half of the shredded cheese.

Repeat the layers with the remaining cauliflower, bacon, leeks, and cheese.

Pour the heavy cream evenly over the top of the layered ingredients.

Season with salt and pepper to taste.

Cover the baking pan with foil and bake in the preheated oven for 30 minutes.

Remove the foil and bake for an additional 15 minutes, or until the top is golden brown and crispy.

Allow the dish to cool slightly before serving.

For a vegetarian version, omit the bacon and add sliced mushrooms or bell peppers for extra flavor. You can also experiment with different cheeses, such as mozzarella or Parmesan, to change the flavor profile. If you prefer a bit of spice, add a pinch of red pepper flakes to the cream before pouring it over the dish. For an even lower carb option, use zucchini slices instead of cauliflower. This dish is quite forgiving, so feel free to adjust the ingredients to suit your taste and dietary needs.