Prepare the Chicken Rice-a-Roni according to package directions; cook in a skillet as instructed, then spread on a tray or in a shallow dish and cool to room temperature.
Drain the jar of marinated artichoke hearts over a large bowl, reserving the marinade/liquid; add the mayonnaise and curry powder to the reserved liquid and whisk to combine.
Chop the drained artichoke hearts into bite-size pieces and add them to the bowl with the dressing.
Add the cooled rice, chopped cooked chicken, chopped sun-dried tomatoes, chopped green onions, and chopped green bell pepper to the bowl.
Toss everything gently until evenly coated with the dressing; taste and season with salt and black pepper as desired.
Cover and refrigerate the salad for a few hours to meld flavors before serving.