Add water to your food steamer over high heat.
Once the water starts to boil, add the sweet potatoes, carrots, and beetroots.
Allow the veggies to cook for about 20 to 25 minutes over low heat. Make sure that they're fork tender when you open the lid.
While the veggies are cooking, mix the onions, extra virgin olive oil, apple cider vinegar, salt, and pepper in a large glass bowl.
Once the veggies are ready, mix them with the vinaigrette.
Sprinkle some chopped scallions / coriander on top to add a pop of color to your salad.