Step 1

Preheat oven to 375 degrees F (190 degrees C).

Step 2

Arrange chicken breasts on a baking sheet; spread carrots, bell peppers, celery, green onion, and parsley around chicken. Drizzle olive oil over chicken and vegetables; season with salt, Italian seasoning, chili powder, lemon pepper, and black pepper.

Step 3

Bake chicken breasts in the preheated oven until no longer pink in the center and juices run clear, about 30 minutes. An instant-read thermometer inserted into the center should read at least 165 degrees F (74 degrees C).