Preheat oven to 400 degrees Fahrenheit.

In a small saucepan over medium flame, sauté garlic in olive oil for one minute until fragrant, then pour in tomato sauce and bring to a simmer. Add seasonings and heavy cream and allow sauce to simmer for 10 minutes, until slightly thickened.

Lay the cauliflower in a large ovenproof casserole dish and pour the sauce over it. Top with mozzarella and parmesan cheese.

Bake in preheated oven for 20 to 25 minutes, until cheese is golden brown.