Mushroom sauce with soy milk

Ingredients

• 400g brown mushroom - finely chopped
• 3 garlic cloves - finely chopped
• 1 onion - finely chopped
• 90g eggplant - finely chopped
• 1 tsp kosher salt
• 25g butter
• 130g yogurt
• 170g soy milk
• 1/2 tbsp soy sauce
• 1/2 tbsp worcestershire sauce
• 120g sour cream
• 1 tsp garlic powder
• 1 or 2 tbsp parmesan cheese
• dash of pepper to taste
• 1 tbsp lime juice (optional)