Season chicken cubes with salt, black pepper, and dried oregano.
Heat 1 tablespoon of olive oil in a large skillet over medium-high heat.
Add chicken and cook for 5-7 minutes until golden brown and the internal temperature reaches 165°F (74°C). Remove chicken from the pan and set aside.
In the same skillet, add the remaining 1 tablespoon of olive oil and the butter.
Add the gnocchi to the skillet and sauté for 4-5 minutes, stirring occasionally, until lightly browned and crisp.
Add the minced garlic and cook for 60 seconds until fragrant.
Pour in the chicken broth and deglaze the pan, scraping up any browned bits from the bottom.
Stir in the heavy cream and bring to a gentle simmer.
Add the fresh spinach and stir until wilted.
Return the cooked chicken to the skillet and stir in the Parmesan cheese until the sauce is thickened and the cheese is melted.
Garnish with fresh parsley and serve immediately.