Next to my deviled eggs, this is the second most requested appetizer I am asked to bring to family parties. My best friend loved it and always asked me to make my "yummy cheeseball" for special occasions.
Set out cream cheese and allow it to come to room temperature. Chop onions and 8 slices of beef. Add the onions, garlic powder, 8 slices of chopped beef, and room temperature cream cheese to a bowl.
Mix with a stand or hand mixer until all ingredients are well blended. You will want to stop and scrape down the bowl a few times to make sure everything gets mixed evenly.
Chop the remaining 8 slices of beef. Put down a 12 inch piece of saran wrap and arrange half of the chopped beef in a circular pattern. Remove cream cheese mixture from the bowl and place on top of the beef in a rounded heap. Sprinkle with remaining chopped beef. Roll cheeseball over and press any excess beef onto bare spots to make sure it is covered on the outside by beef. Place into your favorite serving dish and cover with saran wrap. Refrigerate until about 1 hour prior to serving. Cover and refrigerate any leftovers.