1. Cook the pasta until al dente. Drain and set aside.
2. Heat up a large pot of salted water to boiling. Place the broccolini stems in the boiling water. Return to boil and cook for 2-3 minutes, just until the stems are crisp-tender.
3. Drain the broccolini and rinse with cold water to halt the cooking process. Drain well again.
4. In a large serving bowl combine the broccolini with the cooked pasta. Gently stir in the chickpeas and *walnut pieces.
5. Whisk together the dressing ingredients in a small non-reactive bowl.
6. Pour dressing over the broccoli-pasta mixture. Toss gently to coat.
7. Squeeze the lemon juice over the salad and serve or cover and chill.
8. *NOTE: If you choose to serve the salad cold, stir in the walnuts just before serving.