Brown 1/2 lb. Italian sausage in a deep skillet over medium heat, breaking it into pieces. Mince 2 cloves of garlic, add to the sausage, and sauté for 1 minute.
Add 2 Tbsp tomato paste, 1 28oz. can crushed tomatoes, 1 tsp Italian seasoning, and 1/2 cup water to the skillet. Stir to combine and simmer for 15-20 minutes, stirring occasionally.
Bring a large pot of water to a boil. Add 1/2 lb. pasta and cook for 7-10 minutes until tender. Drain the pasta.
Stir 1/3 cup heavy cream into the simmering sauce. Add 4 oz. fresh spinach and stir until just wilted, about 1-2 minutes.
Add the cooked and drained pasta to the sauce and stir to combine. Serve immediately and enjoy!