01 - Whip cream cheese and sour cream in medium bowl until completely smooth and creamy, about 2 minutes.
02 - Fold cheddar cheese, red bell pepper, green onions, black olives, garlic powder, salt, and black pepper into cream cheese mixture until evenly distributed.
03 - Place tortilla on clean work surface. Spread one-quarter of filling evenly across entire surface, extending to edges.
04 - Roll tortilla tightly from one end to opposite end. Repeat with remaining tortillas and filling. Wrap each roll securely in plastic wrap.
05 - Refrigerate wrapped rolls for minimum 1 hour to firm texture for clean slicing.
06 - Unwrap rolls and cut each into 6 equal pinwheels. Arrange on serving platter and serve immediately.