Leek and lemon paccheri

Ingrediënten

• 90ml olive oil
• 500g trimmed leeks, halved lengthwise and cut into 4cm pieces
• 6 garlic cloves, thinly sliced
• 5 oregano sprigs, plus 1 tbsp roughly chopped leaves
• 1 lemon, zest thinly shaved to get 3 strips, 1 tbsp juice, plus extra to serve
• 350g paccheri pasta
• 2–3 tbsp tahini
• 1½ tsp za’atar
• Fine sea salt and black pepper