Bring a pot of water to boil. Add quinoa and cook 6 minutes. Remove from heat and add couscous. Cover and allow to sit 5 minutes.
Drain through a mesh strainer and rinse with cold water. Shake as much water out as possible.
Place quinoa and couscous in a large bowl and allow to sit 15 minutes then stir in ¼ tsp. salt.
Add remaining ingredients and give a good toss. Add oil from the giardiniera to taste and adjust seasoning. You may want to add a little sugar, start with ¼ tsp.
Recipe by The Spice Kit Recipes at https://www.thespicekitrecipes.com/quinoa-couscous-giardiniera-salad/