In a medium mixing bowl, combine the ricotta cheese, egg white, grated parmesan, sea salt, and black pepper until smooth.
Slowly sift in the cassava flour and stir gently until a soft, slightly tacky dough forms.
Transfer the dough to a surface lightly dusted with cassava flour and roll into long ropes about half an inch thick.
Cut the ropes into 1-inch pieces and set aside on a parchment-lined tray.
Bring a large pot of salted water to a boil and drop the gnocchi in, cooking until they float to the surface for about 2 minutes.
While the gnocchi cooks, heat a large skillet over medium heat and sauté the diced chicken breast until golden and cooked through.
Remove the chicken from the pan and add the ghee, sage leaves, and minced garlic, sautéing until the sage is crisp and the ghee is slightly browned.
Drain the gnocchi and add them to the skillet along with the cooked chicken, tossing everything together to coat in the aromatic sage butter.