If a recipe calls for yogurt can sour cream be substituted?

I've read before that you can do a straight substitution of one for the other, but I've never done it myself so I don't know if the taste/texture is changed at all. Good luck!

I have - go for it. I've even substituted with cottage cheese.... yes, really.

I ran it through a food processor first. Worked great.

I use both yogurt and sc interchangeably. I prefer the yogurt

How interesting, I was just reading on a blog about this subject. What the blogger said was that sour cream has as higher fat content than yogurt, but that if you are only using a small amount you can use the full fat yogurt, but strain the whey so it will become thicker. That should work perfectly.

I've used both in the WASC/Extender recipes as well as in a banana bar recipe I have. I use which ever I have on hand at the time when I need it. Never really noticed a difference in the taste or the texture.

Or how about Greek yogurt? Would that work as a substitution?
Interesting. I think I will try this.

Yes...for sure! I do it all the time, Greek or regular plain yogurt.

I use Greek yogurt and sour cream interchangeably.