Cut slits across the chicken and season with Italian dressing.
In a large non stick skillet add oil and melt in 1 tablespoon of butter on medium high heat.
Add chicken and sear for 5 minutes on each side until golde brown.
Remove the chicken to a clean plate and set aside.
Add the remaining 1 tablespoon of butter to the pan and toss in cherry tomatoes.
Cook for 5 minutes until tomatoes start to soften and get charred.
Lower the heat to medium. Add garlic and saute for 30 seconds or until fragrant.
Pour chicken stock and heavy cream then mix in chopped baby spinach and cook for 2-3 minutes.
Nestle the chicken breasts back into the skillet and spoon the sauce over.
Serve garnished with parmesan cheese