It is difficult for Costco to source all of the organic beef needed for the Kirkland Signature ground beef program exclusively from U.S. suppliers, so organic beef is also procured from Canada and Australia. The Australian cattle raised for the program are 100 percent organic grass-fed.Click to see full answer. In this manner, how much is grass fed beef at Costco?Rastelli USDA Choice Black Angus Filet Mignon 5 oz, 16-count, 5 lbs. Great Southern Grass Fed Beef, Ribeye Steaks,12 oz, 14-pack, 10.5 lbs.One may also ask, does Whole Foods sell grass fed beef? We are excited to announce that Whole Foods Market now offers grass-fed and finished beef in all of our 281 stores in the United States. While this is a nationwide program, it isn’t based on national sourcing. Also to know is, what stores sell grass fed beef? Here are some of the places you can buy certified 100% grass-fed meat products: Shop. Brunskill Beef. Mail Order. Peelham Farm Produce. Mail Order. Native Beef. Mail Order. Primal Meats. Mail Order. Hayes Meadow. Shop. West Town Farm Shop. Mail Order. Eversfield Organic Ltd. Mail Order. Lynns Country Foods Finnebrogue. What grade of meat does Costco sell? Grades of Beef and Prime Beef One thing I wanted to point out is that Costco carry some prime beef. Most grocery stores don’t sell prime beef. Generally all you will find is choice beef, but some select in really cheap stores, but for the most part prime beef is used in restaurants.