Cook pasta according to package directions. Drain and set aside.
Place thyme, shallot, balsamic vinegar, lemon, sugar, and Dijon mustard in blender. Pulse a few times. Slowly blend in olive oil. Add salt and pepper to taste.
In a large bowl, combine pasta, chopped chicken, feta, tomatoes and fresh basil. Pour dressing over pasta mixture. Toss to fully coat chicken pasta mixture.
Serve warm or cold.
