Cucumber Yogurt Smoothie

I tried a variation on my cucumber yogurt smoothie I posted about a week or so ago. If you don't like the sound of buttermilk, use feta cheese instead. I made it today with my non-fat plain greek yogurt, cucumbers, lemon juice, feta and salt and pepper, and it was so yummy. But I'm betting that people who don't like buttermilk probably don't like feta cheese either! My husband would be in that camp.