Pat dry chicken with a kitchen towel. Mix Italian seasoning, salt, and pepper. Season chicken pieces with the seasoning mix on both sides.
Heat an oven-proof skillet with 2 tablespoons of oil. Place chicken pieces skin side down and sear for 3-4 minutes on medium-high heat, flip and sear for another 2-3 minutes.
Add quartered potatoes to the skillet. Pour marinara sauce carefully in the gaps between chicken and potatoes. ( don't pour over the chicken and cover with sauce, so that chicken skin will brown and crisp up nicely).
Bake for 40-45 minutes, until chicken is cooked and potatoes are tender. (Bast chicken pieces with the pan juices a couple of times in between)
After taking out of the oven, sprinkle grated parmesan on top. Garnish with fresh Italian basil.
Serve with grilled veggies, mashed potatoes or crusty bread to scoop the sauce.