Dave Lieberman's feta, black olive, and oregano salad (aka Pizza parlour salad) Recipe | Food Networ

Ingredients

• 1 head iceberg lettuce, cored and roughly chopped
• 1 small red onion, halved and thinly sliced
• 60g good quality feta cheese, crumbled
• 60g pitted black oil-cured Moroccan olives
• 80ml extra-virgin olive oil
• 60ml red wine vinegar
• 1 tsp dried Greek oregano
• 1 tsp caster sugar
• 1/2 tsp salt
• Freshly ground black pepper