Totally works! As long as it's the plain kind, of course, not sweetened with anything else (some "greek" yogurt is also flavored I've noticed in the store). Since I always have plain greek yogurt on hand and never sour cream, it's generally an economical choice for me too!
My Sparkpage is set to private, but I'm open to SparkMail!
"People often say that motivation doesn't last. Well, neither does bathing--that's why we recommend it daily." - Zig Ziglar