Preheat oven to 400 degrees F
Heat a large skillet on the stove for 2 minutes
Add grapeseed oil, diced onions, and crushed garlic
Saute for 2 minutes, until onions begin to brown
Add the canned tomatoes, basil, pepper, and stir to combine
Bring the tomato sauce to a simmer and cook for 3 minutes (DO NOT STIR)
Take half of the sauce mixture and pour it into the bottom of a 9x13 pan
Place half of the amounts of each ingredient into the pan: capers, olives, artichokes, and feta
Cut the chicken breast longways/in half to "double" the amount of chicken
Line the chicken up in the pan on top of the vegetable toppings - There should be 5-6 pieces of chicken
Squirt the juice from one lemon on top of the chicken
Top chicken with remaining half of each topping, beginning with the feta, until all toppings are on
Finish off the layering with the rest of the tomato sauce mixture
Bake chicken uncovered in the oven for 30 minutes
Serve with a side salad or pasta and enjoy!