Set oven to 410F/210C.
Line a baking tray with parchment paper.
Add the veggies and seasoning and toss together in the sheet pan, ensuring every vegetable is covered with spice and oil.
Align the veggies along the perimeter of the sheet pan, making a hole in the center of the sheet pan for the chicken.
Season chicken breasts.
Slice the chicken along the side of the thickest part of the breast, but do not cut all the way through. It should be a “semi-butterfly” cut to create a pocket.
Note: The pocket should be deep enough to stuff, so ensure adequate space for stuffing.
Stuff the chicken pocket with cheese and basil.
Place the chicken breasts in the center of the sheet pan, then spoon the marinara on top of the chicken breasts.
Roast for 18-20 minutes, or until the chicken is cooked through and theveggies are tender
Enjoy immediately while the cheese is melted and pulls apart. Slice the chicken breasts for portioning and divide the veggies into equal servings.
STORAGE: Store in airtight containers in the fridge for up to 4 – 5 days.