Spray 6-quart crock pot/slow cooker with cooking spray.
Season chicken thighs with salt, pepper, paprika, and dried oregano; add to slow cooker in one layer.
Add artichoke hearts over the chicken; sprinkle with garlic.
Take 1/3-cup of the liquid from the jar with the artichoke hearts and pour it over the top.
Add sun-dried tomatoes 30 minutes before it's done cooking; cover and continue to cook.
Remove cover at the end of the cooking time.
Sprinkle with fresh parsley and serve.