Place the chicken breasts onto a parchment lined baking sheet and cover with olive oil and seasonings.
Bake the chicken for 25-30 minutes, until a thermometer reaches 165 degrees F in the thickest part of the chicken breast.
Once the chicken breast is fully cooked add on some sliced tomatoes and shredded mozzarella. Sprinkle with a little more parsley if you want more green on top.
Bake the chicken for another 5 minutes or until the cheese is fully melted.