One Pot Chicken Ratatouille Recipe

Name: One Pot Chicken Ratatouille Recipe
Ingredients: 1.5 lbs boneless skinless chicken breast cut into bite-size pieces; 2 tablespoons olive oil divided; 1/2 teaspoon salt; 1/4 teaspoon black pepper; 1.5 teaspoon Italian seasoning; 1 small yellow onion; 2 garlic cloves minced; 1 eggplant cut into 1 pieces; 2 medium zucchini cut into half-moons; 2 medium tomatoes diced; 1 cup crushed tomatoes; 1/2 cup chicken stock or broth; 1 tablespoon chopped parsley