Salad Adas dengan Saus Lemon dan Parmesan

Bahan-bahan (4 porsi)

• 1 medium fennel (, or 2 baby fennels)
• 1/2 red onion (, shaved or finely sliced)
• 2 tbsp lemon juice
• 2 1/2 tbsp extra virgin olive oil (, separated)
• 1/4 tsp salt
• 1/4 tsp pepper
• 1/4 cup parmesan cheese (, freshly grated)