Preheat your oven to 375°F (190°C).
In a bowl, mix olive oil, garlic, lemon juice, thyme, and rosemary.
Season the chicken breasts with salt and pepper.
Marinate the chicken in the mixture for at least 30 minutes.
Heat a skillet over medium-high heat and add a bit of oil.
Sear the chicken pieces for 3-4 minutes on each side until golden brown.
Transfer the chicken to a baking dish.
Add vegetables like zucchini and bell peppers around the chicken.
Pour any remaining marinade over the chicken and veggies.
Bake in the oven for 1 hour or until the chicken is fully cooked and tender.