Have you ever wondered how they make that delicious green sauce that goes with Mexican spicy shrimp tacos? For me, that is the motivation for preparing this dish. It’s not that I’m not into shrimp. It’s because to me the green sauce is what makes the meal distinctive. I have sat and pondered the mystery of the green sauce many times and have concluded that it means different things to different people. For some it’s a green salsa while for others a creamy avocado topping. After much experimentation I finally found the recipe I was looking for – a garlic cilantro lime sauce using sour cream or greek yogurt as its base.