Preheat oven to 400 degrees. In an dutch oven heat the olive oil. Add the garlic and rice and cook over moderate heat, stirring until very fragrant, approx 2 minutes. Stir in the broth and bring to a boil. Cover and bake for about 20 - 30 minutes, until the rice is tender and liquid absorbed. Stir in the 1/2 cup of cheese, Italian sausage, tomatoes, heavy cream and spinach. Stir until the spinach begins to wilt, cover and bake an additional 2 - 3 minutes. Season with salt and pepper, to taste, stir until well combined. To serve, drizzle with olive oil and top with additional cheese.