Heat the olive oil in a large, deep pan over medium heat and add the unsalted butter until fully melted and foaming.
Add in the diced chicken breast and sauté for 4-5 minutes until golden brown on all sides.
Stir in the minced garlic and continue cooking for another minute until it becomes fragrant, then sprinkle in Italian seasoning mix.
Pour in the dry white grape juice, cooking for about 1-2 minutes until most of the alcohol evaporates, followed by adding chicken stock.
Once bubbling gently, stir in cream cheese until fully integrated into a smooth sauce.
Introduce gnocchi and baby spinach into the pan, cover with a lid, and cook for an additional 3-5 minutes until gnocchi is tender and spinach has wilted down.