One-pan pastitsio
By Georgina Hayden From Saturday Kitchen Ingredients 2 tbsp olive oil 500g/1lb 2oz beef mince 2 onions, finely chopped 4 garlic cloves, finely chopped 1 tsp dried oregano, plus a pinch ½ tsp ground cinnamon 2 tbsp tomato purée 250g/9oz traditional pastitsio pasta, bucatini …