01 - In a medium mixing bowl, beat the cream cheese and sour cream together until completely smooth and well incorporated.
02 - Add the shredded cheddar cheese, red bell pepper, green onions, black olives (if using), garlic powder, salt, and black pepper. Stir until all ingredients are evenly distributed throughout the creamy base.
03 - Place a tortilla flat on a clean work surface. Spread one-quarter of the filling mixture evenly over the entire surface, extending to the edges. Roll the tortilla up tightly from one end to the other, pressing gently as you roll to maintain a tight cylinder.
04 - Continue the process with the remaining three tortillas and filling mixture, ensuring each is rolled with consistent tightness.
05 - Wrap each rolled tortilla individually in plastic wrap and refrigerate for at least 1 hour. Chilling firms the filling and makes clean, even slicing much easier.
06 - Unwrap the chilled tortilla rolls and slice each into 6 even pinwheels using a sharp knife. Arrange on a serving platter and serve immediately, or keep refrigerated until ready to serve.