Hello to you!! Here is some great info on how to use yogurt as a substitute in your cooking.  I have been substituting yogurt for many many ingredients in my recipes, and some include, eggs, mayonnaise, sour cream, and much more. I find using Greek yogurt is healthier vs lets say sour cream. Click on this link below to find out some useful information on how to use yogurt in your kitchen. Cheers~

http://www.sheknows.com/health-and-wellness/articles/961121/what-you-should-know-about-substituting-yogurt-in-your-favorite-recipes