1: Make the dressing: combine garlic, balsamic, worcestershire, dijon and oil, salt and pepper. Mix well.
2: Boil the pasta, removing two minutes before the package directions. Drain and rinse with cold water.
3: To a large bowl add the pasta, sun dried tomatoes, feta and the dressing. Gradually add the spinach until all combined.
4: Refrigerate for at least 1 hour, or up to 24 hours in advance. Taste for salt and pepper.
5: Garnish with more feta.