Prepare spinach according to package. Set aside.
Season chicken with salt and pepper.
Add oil and butter to a large, non stick, skillet over medium - high heat. When pan is hot and butter is melted, place chicken in the pan. Cook until chicken is browned well (about 5 minutes), flip over and brown other side as well. Remove chicken from pan and set aside on a plate.
Return skillet to heat and add butter and shallots. Cook shallots until about 2 minutes, stir in garlic and cook 1 minute more. Stir in wine to deglaze the pan, stirring well to release any flavors stuck to the bottom of the pan. Allow wine to reduce by about half (about 3-5 min)and then stir in the cream. Bring just to a boil and then place chicken back into the pan. Continue to cook over medium-high heat until sauce is thickened and chicken is cooked through. Stir in parsley and remove from heat.