Preheat oven to 400 degrees. Line a baking sheet with parchment paper and arrange the sweet peppers. Drizzle with olive oil if desired and sprinkle with salt and pepper. Roast for 15-20 minutes until edges are slightly charred. Remove from the oven and cool just until they're comfortable to handle. Pull out the stems and coarsely chop.
While the peppers are roasting, add all ingredients for the dressing to a jar and whisk with a fork to combine. Alternatively, you can mix in a blender for extra creaminess and emulsification.
Add the greens, orzo, peppers, tomatoes, cucumber, artichokes, sweet corn pine nuts, and parsley to a large salad bowl. Drizzle the dressing over the salad and toss to combine.
