The Athenian's halloumi souvlaki recipe

Ingredients

• 1 tbsp olive oil
• 500 g halloumi, sliced
• 2 tbsp dried oregano
• 4 pitta breads
• 6 tbsp tzatziki
• 1 handful crisp lettuce leaves, shredded
• 3 ripe tomatoes, sliced or coarsely chopped
• 1 small red onion, thinly sliced
• 1 handful French fries, seasoned
• 1 pinch sea salt, to taste
• 1 pinch freshly ground pepper
• 1 handful flat-leaf parsley, chopped
• 1 pinch smoked paprika, for dusting