This Homemade Tzatziki Sauce Recipe is low calorie and easy to make!We use a cheese grater to shred the cucumber, making this greek dip with yogurt packed full of flavor and quick to make. You don't even need to peel the cucumber!Try this greek cucumber sauce recipe on all your favorite Greek recipes, or make this tzatziki dip for veggie sticks and pita slices. It's only 41 calories per servings and packed full of metabolism boosting Greek Yogurt.