In a large skillet, add the olive oil. Add the diced sausage pieces and saute for 3-4 minutes, or until begin to brown. Stir often. (I was using a fully cooked chicken sausage. If you use an uncooked sausage, then be sure to cook it all the way through before adding in the sauce.)
Once browned, stir in the tomato sauce and add the basil leaves and salt and pepper.
While the sausage is browning, cook the pasta as directed on the package. Drain and return to the pot.
Pour the sausage and basil sauce over the pasta and toss. Toss with shredded or grated parmesan cheese if desired.
Cook the brussels sprouts as directed on the bag.
Serve Penne Pasta with Sweet Sausage and Basil Sauce, and a side of Brussels sprouts or other veggie.