Rinse the quinoa thoroughly under cold water, then combine with 0.5 cup of water in a small saucepan and bring to a boil.
Reduce heat to low, cover, and simmer for 12-15 minutes until the water is absorbed and the quinoa is fluffy.
While the quinoa cooks, season the chicken breast evenly on both sides with ground turmeric, garlic powder, sea salt, and black pepper.
Heat the olive oil in a medium skillet over medium-high heat and sear the chicken for 5-7 minutes per side until golden and cooked through.
Remove the chicken from the pan to rest, then add the diced red bell pepper to the same skillet and sauté for 3 minutes.
Add the fresh spinach to the skillet and cook just until wilted, then remove from heat.
In a bowl, toss the cooked quinoa with the sautéed peppers, spinach, and fresh lemon juice.
Slice the chicken breast into strips and serve it over the zesty quinoa salad.