Season the chicken breast with half of the sea salt and black pepper.
Pan-sear the chicken in a non-stick skillet over medium-high heat until golden and cooked through, about 6 minutes per side.
Remove the chicken from the pan, let it rest for 5 minutes, then slice into thin strips.
In a medium bowl, stir together the ricotta, egg, parmesan cheese, cassava flour, and remaining salt and pepper until a soft dough forms.
Turn the dough onto a lightly floured surface and roll into long ropes, then cut into 1-inch gnocchi pieces.
Bring a large pot of water to a boil and cook the gnocchi until they float to the surface, which takes about 2 to 3 minutes.
In a clean skillet, melt the ghee over medium heat and add the minced garlic and fresh sage leaves, cooking until the sage is crisp and the ghee is slightly browned.
Drain the gnocchi and add them to the skillet along with the sliced chicken, tossing gently to coat in the fragrant sage butter.