01 - In a medium mixing bowl, blend ricotta cheese, Parmesan cheese, garlic powder, dried oregano, salt, and black pepper until smooth and well combined.
02 - Add chopped baby spinach, diced red bell pepper, sliced green onions, and optional sun-dried tomatoes or basil if desired. Mix thoroughly to ensure an even distribution.
03 - Place one tortilla on a clean cutting board. Evenly spread one-fourth of the ricotta-spinach mixture over the surface, keeping a 1/2-inch border uncoated.
04 - Firmly roll the tortilla into a log starting from one edge. Transfer to a plate.
05 - Repeat spreading and rolling with remaining tortillas and mixture.
06 - Wrap each rolled tortilla with plastic wrap and refrigerate for 30 minutes to set and facilitate clean slicing (optional but recommended).
07 - Unwrap and cut each roll crosswise into 1-inch thick pinwheels using a sharp chef's knife. Arrange the pinwheels onto a serving platter.
08 - Present chilled or at room temperature as a light lunch or appetizer.