In a large mixing bowl, add chard, carrots, beet, and red onion, and toss to combine. Set aside.
In a small bowl, whisk together olive oil, apple cider vinegar, honey, and salt until emulsified. Pour dressing over the vegetables, and toss together until combined.
Let vegetables marinate at room temperature for at least 45 minutes to 1 hour to soften the chard and beets.
Sprinkle with sunflower seeds and serve.
Serving size: 1 1/4 cup Calories: 130 calories, Fat: 10 grams, Saturated fat: 1 gram,Carbohydrates: 5 grams, Sugar: 3 grams, Sodium: 100 milligrams, Fiber: 2 grams,Protein: 1.5 grams, Cholesterol: 0 milligrams