1. Place zucchini in a bowl. Add 1/4 cup water, cover (leaving it slightly open to vent steam) and microwave on high until tender, 4 to 5 minutes. Uncover, drain and let cool.
2. Divide spinach among 4 bowls. Microwave each, uncovered, for 1 minute on high to wilt, if desired.
3. In a bowl, toss pasta, chickpeas, artichoke hearts with marinade, olives, tomato, basil and oregano. Toss in zucchini. In a separate bowl, whisk oil, vinegar and mustard. Season with salt and pepper. Toss with pasta mixture.
4. Divide mixture among bowls with spinach. Top with cheese and serve.