Step 1

Preheat oven to 350° In a large oven-safe skillet over medium-high heat, cook sausage, breaking up with a wooden spoon, until seared and no longer pink, about 4 minutes. Add onion, and garlic, and cook, stirring, until soft, 5 minutes more.

Step 2

Add pasta, tomato sauce and season with salt. Stir in half-and-half and simmer until mostly absorbed, 2 minutes more. Remove from heat and stir in half of mozzarella.

Step 3

Transfer mixture to a large baking dish and sprinkle with remaining mozzarella. Bake until cheese is bubbly and golden, about 10 minutes.

Step 4

Garnish with basil and serve.