Middle Eastern Nachos

• 3 wholemeal Lebanese bread
• 400 g lean beef mince
• 1.25 tsp ground sumac
• 1 cup shredded cheese
• 2 tomatoes, finely chopped
• 1 red onion, finely chopped
• 1 Lebanese cucumbers, cut into 1cm pieces
• 0.25 bunch continental parsley, coarsely chopped
• 0.25 lemon, juiced
• 1 tbsp extra virgin olive oil
• 2 tbsp Tzatziki or Tangy Tahini Flavour Bomb (see separate recipe)