Preheat your oven to 400°F (200°C).
Season the chicken breast with half of the sea salt, black pepper, thyme, and oregano.
Place the chicken on a parchment-lined baking sheet and roast for 18-22 minutes until the internal temperature reaches 165°F.
While the chicken roasts, heat the olive oil in a large skillet over medium heat.
Add the diced onion and bell pepper, sautéing for 5 minutes until softened.
Stir in the minced garlic, cubed eggplant, and sliced zucchini, cooking for another 8 minutes until the vegetables begin to brown.
Pour in the tomato puree and the remaining dried herbs, stirring to combine.
Reduce heat to low, cover, and simmer the vegetable mixture for 10 minutes until the eggplant is tender.
Once the chicken is finished, let it rest for 5 minutes before slicing into thin strips.
Spoon the ratatouille onto a plate, top with the sliced chicken, and garnish with fresh parsley.