Season the chicken breast evenly on both sides with sea salt and black pepper.
Heat the olive oil in a medium skillet over medium-high heat.
Add the chicken to the skillet and cook for 5-7 minutes per side, or until golden brown and cooked through to an internal temperature of 165°F.
Remove the chicken from the pan and set aside on a plate to rest.
In the same skillet, lower the heat to medium and add the minced garlic, sautéing for 30 seconds until fragrant.
Add the fresh spinach to the skillet and toss until just wilted.
In a small bowl, whisk together the ricotta cheese, cottage cheese, lemon juice, and lemon zest until smooth.
Pour the cheese mixture into the skillet with the spinach, stirring constantly for 1-2 minutes until heated through and creamy.
Place the chicken back into the skillet, spooning the lemon ricotta sauce over the top.
Garnish with grated parmesan cheese and serve immediately.