1Heat oil, saute sausage meat, breaking up with a spoon, until browned.Stir in garlic and hot pepper flakes;cook for 2 mins.
Add tomatoes,basil, s/p and sugar; bring to a boil.. Reduce heat and simmer 20 mins. Stir in beans. (can be made ahead: let cool and put in fridge for 24 hours.
Cook pasta in a large pot until slightly firm, about 7-8 mins.
Drain and return to pot reserving 1/2 cup liquid. Add the tomato sauce and sausage mixture, reserved water, and swiss chard. Toss to coat. Transfer to a large baking dish (10 cup) and sprinkle with the cheeses. bake at 375 for 20 mins covered. uncover and bake 10 more mins until brown and bubbly.