Season the chicken breast with a pinch of sea salt and black pepper.
Heat 0.5 tsp of olive oil in a skillet over medium heat and cook the chicken until the internal temperature reaches 165°F, then slice into thin strips and set aside.
In a medium mixing bowl, combine the ricotta cheese, egg, parmesan cheese, remaining salt, and remaining pepper, whisking until the mixture is smooth.
Gently fold in the flour using a spatula until a soft, slightly tacky dough forms, being careful not to overwork the dough.
Bring a large pot of salted water to a gentle boil.
Using two small spoons, scoop and drop small mounds of the ricotta dough into the boiling water.
Cook the gnocchi for 2 to 3 minutes; once they float to the surface, let them cook for an additional 30 seconds before removing with a slotted spoon.
In a clean skillet, melt the butter with the remaining 0.5 tsp of olive oil over medium heat.
Add the fresh sage leaves to the butter and cook until the leaves are crisp and the butter begins to turn a light golden brown.
Add the boiled gnocchi to the skillet and toss gently for 1 minute to coat them in the sage butter and develop a light golden crust.
Plate the gnocchi and top with the sliced chicken breast, drizzling any remaining sage butter from the pan over the top.