Preheat your oven to 375 degrees f and place your cooked quinoa on a parchment paper lined rimmed sheet pan.
Drizzle with oil and season lightly with sea salt and pepper. Stir to combine, then arrange in a very thin layer.
Bake for 20-25 minutes, stirring every 5 minutes.
Meanwhile, place all the ingredients for your dressing in a blender and blend until smooth. Add water to your desired dressing consistency.
Prepare all of your salad ingredients, (reserving feta as topping) and place in a large bowl.
Once the quinoa is finished toasting, remove from the oven and allow it to cool.
Add your cooled, crispy quinoa to the salad bowl and toss with the dressing.
Top with crumbled feta.