Preheat oven to 350 degrees F.

Heat oil into a large skillet over medium heat. Saute onion for 5 minutes or until softened. Stir in garlic and cook for 1 minute. Add chicken sausage and salt; cook until cooked through.

Process tomatoes into a food processor until nearly smooth. Add to skillet along with fresh basil. Reduce heat to low and simmer.

Cook penne according to packaging directions.

Add half of the cooked pasta to 13x9 baking dish, add half of the sauce then sprinkle with half of the cheeses. Repeat with one more layer. Top with remaining cheese.

Bake for 20-25 minutes or until cheese is melted and starting to brown.