parboil pasta - 5 min
Saute the onions, bell pepper and mushrooms until soft about 6 minutes, add garlic andsaute one more minute, add canned tomatoes and cook 2 more minutes
Mix together with soup, pasta and 2/3rds of the cheese.
Put into a 13x9 baking dish coated with cooking spray.
Top with remaining cheese and bake until bubbly and crusty on top - about 30 minutes at 350 degrees