Cook pasta according to package directions, omitting salt and fat.
. Meanwhile, heat oil in a large nonstick skillet over medium heat. Add onion; sauté 10 minutes or until golden brown. Add garlic; sauté 1 minute. Add broth; sauté 1 minute.
. Drain pasta. Combine pasta, onion mixture, artichokes, and remaining ingredients in a large bowl; toss well.