Meanwhile, cook sausage in large skillet on medium-high heat, 8 to 9 min., stirring occasionally. Remove from skillet and set aside. Drain any fat from pan. Reduce heat to medium. Add olive oil, onions and garlic; cook until crisp-tender, 3 to 5 min. Add cream cheese and broth, stirring until cream cheese is melted, about 2 min. Add drained pasta, sundried tomatoes, basil and sausage, tossing to combine. Pour into a 2-L baking dish sprayed with cooking spray. Sprinkle with cheese.