In a small saucepan, bring the water and almond milk to a boil over medium-high heat.
Slowly whisk in the dry polenta, then reduce the heat to low and cover.
Simmer the polenta for 15 to 20 minutes, stirring every few minutes to prevent sticking, until the texture is thick and creamy.
While the polenta cooks, season the chicken breast on both sides with half the sea salt, black pepper, and all of the dried oregano.
Heat the olive oil in a medium skillet over medium-high heat and sear the chicken for 6 to 7 minutes per side until golden brown and the internal temperature reaches 165°F.
Remove the chicken from the pan and let it rest for 5 minutes before slicing into strips.
In the same skillet, add the minced garlic and fresh spinach, sautéing for 1 to 2 minutes until the spinach is just wilted.
Stir the ghee and the remaining sea salt into the finished polenta.
To serve, spoon the creamy polenta onto a plate, layer the sautéed spinach on top, and finish with the sliced pan-seared chicken.