Pour the water, quinoa, and salt in a medium saucepan. Bring to a boil. Reduce to low. Simmer for 15 minutes. Remove from the stove, cover, and let sit for at least 10 minutes.
1 ¾ cup water, 1 cup quinoa, ½ teaspoon salt
Slice the onion and cucumber.
¼ red onion, 1 medium cucumber
Grate the beet.
½ beet
Whisk together the vinegar, maple syrup, Dijon mustard, and avocado/olive oil in a small bowl.
1 tablespoon apple cider vinegar, 1 teaspoon maple syrup, 1 teaspoon Dijon mustard, 1 teaspoon avocado oil
Assemble the salad with arugula, beets, cucumber, onion, quinoa, and sunflower seeds. Toss with dressing just before serving.
2 cups arugula, ½ cup sunflower seeds