Even cheaper: Nurri ultra filtered milk (150 cal, 30g protein, vanilla or chocolate) Nonfat plain Greek yogurt (Kirkland at Costco, or store brand from Walmart or Aldi) has solid macros, btwn 90 and 100 cals for 16-18g protein. Can mix in fruit, sugar free syrup, cinnamon, or flavored protein powder to get even more protein (or just add some taste to it)