Heat oven to 375 degrees F. Grease a 13 x 9 x 2-inch baking dish. Set aside.
Cook pasta in lightly salted boiling water for 8 to 9 minutes. Drain.
In medium-size bowl, stir together the cheeses, garlic salt, basil and black pepper.
In large bowl, stir together cooked pasta, half of the cheese mixture, red pepper, sausage, half of the drained tomatoes and half of the pasta sauce.
Spoon pasta mixture into prepared baking dish. Top with remaining drained tomatoes, pasta sauce and cheese mixture.
Cover and bake at 375 degrees F for 30 minutes. Uncover and bake for 15 more minutes or until bubbly. Let stand 10 minutes before serving. Makes 8 servings.