Vegetarian pastitsio - Good Food Middle East

Ingredients

• 2 large onions (330g), halved and sliced
• 1 tbsp olive oil
• 2 tsp vegetable bouillon powder
• 2 bay leaves
• 2 tbsp balsamic vinegar
• 2 garlic cloves, finely grated
• 1 tsp dried oregano
• 1 tsp ground cinnamon
• 250g penne pasta
• 400g can chopped tomatoes
• 4 tbsp tomato purée
• 2 x 400g cans green lentils
• salad of tomatoes, onion and dill tossed with lemon and olives, to serve
• 500ml milk or plant-based milk
• 50g wholemeal flour
• 1 egg, separated
• 40g vegetarian feta, crumbled
• ½ tsp oregano