Cook the couscous according to package’s instructions.
While the couscous is cooking, make the dressing. Add all dressing ingredients in a jar or small bowl. Whisk or shake the jar until well combined. Set aside.
In a large bowl, add the arugula, peaches, beets, couscous, and sunflower seeds. Pour desired amount of dressing over the salad (I used about 3/4 of the mixture). Toss salad until well combined. Enjoy!