Vegetarian Lasagna

Ingredients

• 250g San Remo Instant Lasagna
• 1 tbsp olive oil
• 1 onion, chopped
• 250g mushrooms, sliced
• 1 tsp dried basil leaves
• ½ tsp dried oregano leaves
• 400g can crushed tomatoes
• ½ cup tomato paste
• 2 tomatoes, peeled and chopped
• 30g margarine
• 2 tbsp wholemeal plain flour
• 2 tbsp white wine
• ¾ cup low fat milk
• ½ cup low fat cheddar
• 1 clove garlic, crushed
• 100g spinach leaves, chopped
• 2 shallots, chopped
• 400g low fat ricotta cheese
• 1/2 cup low fat cheddar, grated
• 2 eggs