Bring a large pot of salted water to a boil and cook the penne according to package directions until al dente; drain and set aside.
While the pasta cooks, heat a large skillet over medium heat and add the Italian sausage; break it up and cook 4–5 minutes until no longer pink.
Add the minced garlic to the skillet with the cooked sausage and cook 30–60 seconds until fragrant.
Stir in the drained, chopped stewed tomatoes, heavy whipping cream, salt, dried basil, and 1/2 cup of the shredded Parmesan. Bring the mixture to a gentle boil over medium heat.
Reduce heat and simmer uncovered 6–8 minutes, stirring occasionally, until the sauce thickens.
Toss the drained penne with the sausage-tomato-cream sauce until evenly coated.
Serve topped with the remaining Parmesan cheese.