Cook the orzo according to package directions. Drain, chill and set aside.
In a blender or food processor, puree the dressing ingredients until smooth. Set aside
To assemble the salad jars, pour 2-3 tbsp of dressing and then layer a quarter of each of the ingredients into each of the four jars as follows: artichoke hearts, red peppers, spinach, ham, cooked orzo, and top with Parmesan. Place lids tightly onto the jars and refrigerate. Gently stir or shake just before eating.