Ingredient:

• 2 cans (10-3/4 ounces each ) condensed cream of chicken soup, undiluted
• 1 cup chicken broth
• 1 medium onion, finely chopped
• 1-1/2 teaspoons garlic powder
• 1 teaspoon salt
• 1/2 teaspoon pepper
• 2 pounds boneless skinless chicken breasts
• 1 package (16 ounces) elbow macaroni
• 2 cups shredded cheddar cheese
• 1 cup (8 ounces) sour cream
• Chopped green onions, optional