Yam, Zucchini, and Chickpea Salad

INGREDIENTS

• 1 tablespoon olive oil
• zest and juice of 1 lemon
• 2 garlic cloves
• 2 yams or sweet potatoes, diced into 1-inch pieces
• 1 zucchini, diced into 1-inch pieces
• olive oil
• 1 tablespoon tahini
• 2 scallions, thinly sliced on bias
• 3 sprigs parsley, leaves finely chopped
• 1 can chickpeas, rinsed and drained
• salt and pepper