Spring Rice Pilaf

 tablespoons butter or olive oil

 cups uncooked long-grain white or brown rice

  small yellow onion, finely chopped

  carrots, diced

  red bell pepper, diced

  cloves garlic, minced

 cup frozen corn

 cup frozen peas

 cups chicken broth

 pound boneless, skinless chicken breasts, cubed

 teaspoon salt

 teaspoon pepper

chopped fresh parsley, for garnish