Step #1 Mix chicken through Italian seasoning in a dish & let marinate overnight.
Step #2 Dice the zucchini & tomato, then mix them together.
Step #3 Store these in the refrigerator overnight too.
Step #4 Preheat oven to 350.
Step #5 Heat a fry pan on the stove top on high till hot, then turn the heat down to medium high.
Step #6 Remove chicken from marinade (but keep the liquid), salt & pepper both sides of the meat & sear the chicken in the fry pan till brown, about 3 mins per side.
Step #7 Place the browned chicken on a greased baking sheet (which has a rim to catch the chicken juices).