ranch chicken and rice soup

Ingredients:

• 1 tablespoon olive oil
• 1 onion, chopped
• 3 cloves garlic, minced
• 1 pound boneless, skinless chicken breasts, diced
• 1 packet (1 ounce) ranch seasoning mix
• 6 cups chicken broth
• 1 cup long-grain white rice
• 1 cup diced carrots
• 1 cup diced celery
• 1 cup frozen corn kernels
• 1 cup heavy cream or half-and-half
• Salt and pepper to taste
• Chopped fresh parsley for garnish (optional)