In a large bowl, mix rice together with chili powder, cumin and garlic salt. Add remaining ingredients except for cheese and sour cream. Sprinkle cheese over tortillas, leaving 1/2-inch border around edges, then arrange chicken and rice mixture down the center of each tortilla. (Optional: Add a little sour cream in the wraps.) Roll stuffed tortillas, leaving edges open and slightly flatten the wraps with the palm of your hand. Spray seam-side of the wrap lightly with cooking spray.

Heat a large non-stick skillet (or griddle) over medium heat for 1 minute. Arrange wraps, seam-side down, in pan or griddle and cook until golden brown and crisp, about 2-3 minutes per side. Transfer to a plate and repeat with remaining wraps. Serve warm.