Cook pasta according to package directions. Meanwhile, in a large skillet, saute onion in oil until tender.
Add garlic; cook 1 minute longer. Stir in the broth, basil, oregano, salt and pepper. Bring to a boil; cook for 8 minutes or until reduced by about half. Stir in cream.
Cook, uncovered, 8-10 minutes longer or until sauce is reduced to 1-1/4 cups.