Start by seasoning both sides of the chicken breast cutlets with salt and pepper (to taste).
Now add 1/2 cup of flour to a large plate and dredge both sides of the chicken in the flour.
Add 2 Tbsp of olive oil and 2 Tbsp of unsalted butter to a large pan and bring it to medium-high heat. Once the oil and butter are hot, sear both sides of the chicken until fully cooked. Remove and set aside.
Bring the heat down to medium and add 3 minced garlic cloves to the same pan. Sauté for about 20 seconds or until the garlic is fragrant.
Then add 1/4 cup of white wine. Let it cook out for 1 minute. Then add 1/2 cup chicken broth and 1 cup heavy cream.
Let the sauce come to a simmer and add 2 cups of spinach.
Once the spinach has wilted down after a few minutes of stirring, stir in 1/4 tsp Italian seasoning and 1/2 cup of grated parmesan cheese.
After the cheese is fully melted, add back the cooked chicken and serve with mashed potatoes or hot butter pasta.
Notes
Flatten the chicken- Slice the chicken breasts slim and pound them flat so they don't puff up too much while they cook.
Don't add cold chicken to the pan- Doing this will cool the hot oil/butter. Leave the chicken out from the fridge while you prep your ingredients so it can warm slightly.
Leave the chicken undisturbed- Wait for the crust to form while it sears so that the chicken won't tear when it's lifted out of the pan.
Use a mix of butter and olive oil- The olive oil has a high smoke point that keeps the chicken from burning, and the butter helps it brown to a delicious golden color.