Rinse the quinoa under cold water.
In a pot, combine quinoa and water; bring to a boil.
Reduce heat, cover, and simmer for 15 minutes until water is absorbed.
Season the salmon with olive oil, salt, and pepper.
Heat a skillet over medium heat and cook the salmon for 6-8 minutes on each side.
Remove the salmon and let it rest.
Fluff the quinoa with a fork and transfer it to a bowl.
Arrange spinach, avocado, radish, and cherry tomatoes on top of quinoa.
Place the salmon fillet in the center of the bowl.
Garnish with fresh cilantro and a drizzle of olive oil.