Refuel at lunchtime with a fiber-filled meal that will keep you satisfied through the afternoon.
In a large bowl, toss beets, celery, cucumber, and scallions.
To serve, toss 2 cups slaw with arugula, oil, and lemon juice. Season with salt and pepper. Top with avocado and seeds.
You can prepare the beet slaw ahead and refrigerate. Add greens, avocado, and seeds just before eating.