It's decadent brittle paired with unbreakable flavor. Pistachio Frozen Greek Yogurt Bars with Pistachio Brittle Pieces. Yasso Frozen Greek Yogurt: Reimagined dessert with frozen Greek yogurt for a creamy and delicious alternative to ice cream. Indulge in a flavor-forward treat where spectacular and practical collide, made with quality ingredients, real Greek yogurt and rBST-free milk. With flavors ranging from 80-130 calories and 4-6g of protein, it's a best of both worlds dessert the whole family will love.