Greek-style Meatballs

WHAT YOU'LL NEED

• 2 tablespoon olive oil
• 1 onion, finely chopped
• 1 garlic clove, finely chopped
• 1 tsp ground coriander
• 500 g lamb mince
• 2 tsp fresh oregano, chopped, or 1 tsp dried oregano
• 50 g white bread, crusts removed, soaked in milk
• 1 egg beaten
• 1 tsp Knorr Aromat Seasoning
• 2 tbsp plain flour
• 500 ml homemade tomato sauce
• 75 g feta cheese (crumbled) or mozzarela