Rinse the basmati rice under cold running water until the water runs clear to remove excess starch.
In a small saucepan, combine the rinsed rice, 0.5 cup water, ground turmeric, and a pinch of sea salt. Bring to a boil, then reduce heat to low, cover, and simmer for 15 minutes.
While the rice cooks, season the chicken breast evenly on both sides with the sea salt, black pepper, fresh rosemary, and fresh thyme.
Heat the extra virgin olive oil in a medium skillet over medium-high heat. Once hot, add the chicken breast and sear for 6 to 7 minutes per side until golden brown and cooked through.
During the last 2 minutes of chicken cooking, add the minced garlic, lemon juice, and lemon zest to the skillet, spooning the juices over the chicken.
Once the rice is done, remove from heat and immediately stir in the baby spinach, covering the pot for 1 minute to allow the steam to wilt the greens.
Fluff the golden rice with a fork and plate it alongside the sliced lemon-herb chicken, drizzling any remaining zesty pan juices over the top.