Mary Berry Vegetarian Lasagne Recipe 🍽️

Ingredients

• Butter for greasing
• 500g (1lb 2oz) frozen leaf spinach, thawed and well-drained
• 600ml (1 pint) hot white sauce (see recipe below)
• 200g (7oz) Emmental cheese, grated
• About 6 sheets of no-precooking-required dried lasagne
• 2 tbsp olive oil
• 1 large onion, peeled and chopped
• 350g (12oz) button mushrooms, trimmed and sliced
• 2 large garlic cloves, peeled and crushed
• 40g (1¼ oz) plain flour
• 400g can chopped tomatoes
• 1 tsp sugar
• Salt and freshly ground black pepper
• 1 tbsp shredded fresh basil
• 1 tbsp balsamic vinegar
• 40g (1¼ oz) butter
• 600ml (1 pint) hot milk
• A few gratings of fresh nutmeg