Rinse quinoa in a fine mesh strainer and place into a medium pot. Add 1.5 cups vegetable broth (or water) and bring to a low boil. Reduce heat to low-medium, cover with tight-fitting lid, and cook for 15-17 minutes, or until fluffy and all the water is absorbed. Fluff with fork, remove from heat, and let sit covered for 5 minutes.
Meanwhile, grab a very large skillet or wok. Sauté the leek and garlic in the oil for about 5 minutes over medium heat. Season generously with salt and pepper. Add in the asparagus and sauté for another 5-10 minutes or until the asparagus is just tender, but still a bit crisp. Stir in the strawberries (optional), peas, and parsley. Heat for a few minutes and then remove from heat.
Whisk together the dressing ingredients (olive oil, lemon juice, maple syrup, and 1/4 tsp fine grain sea salt) to taste. Pour dressing onto skillet mixture and stir in the cooked quinoa. Season to taste with salt and pepper & enjoy! This would also be lovely with nuts or seeds sprinkled on top.