In a large bowl, combine the softened cream cheese, Greek yogurt, lemon juice, dried dill, and garlic powder. Mix until smooth and well combined.
Fold in the finely chopped Kalamata olives and crumbled feta until evenly distributed throughout.
Lay a large piece of plastic wrap in a bowl. Scoop the cheese mixture into the center. Gather the plastic wrap around the mixture and shape it into a ball as best you can. Twist the top tightly to seal.
Refrigerate overnight or freeze for 1 to 2 hours until the ball is firm enough to hold its shape.
Spread the crushed pita chips, sliced black olives, and Greek olive mix on a flat plate or board. Unwrap the chilled cheese ball and roll it through the coating, pressing gently so the coating adheres to all sides.
Transfer to a serving board and serve immediately with extra pita chips, sliced vegetables, or crackers alongside.