In a medium bowl, combine the ricotta cheese, egg, sea salt, and flour, stirring until a soft and slightly tacky dough forms.
Turn the dough onto a lightly floured surface, roll into thin ropes, and cut into 1-inch gnocchi pieces.
Bring a small pot of water to a boil and cook the gnocchi until they float to the surface, then remove with a slotted spoon and set aside.
Season the chicken breast with black pepper and sear in a skillet over medium-high heat until cooked through, then remove and slice into strips.
In the same skillet, melt the ghee over medium heat and add the fresh sage leaves and minced garlic, sautéing until the sage is crisp and fragrant.
Add the cooked gnocchi and baby spinach to the skillet, tossing gently until the spinach is wilted and the gnocchi are lightly golden.
Transfer the gnocchi and spinach to a plate and top with the sliced chicken breast to serve.