Wash your hands well with soap and warm water for at least 20 seconds.
Drain chicken.
Wash carrots under running water to remove any dirt. Chop carrots to ½ inch rounds.
Peel and cut onion into medium pieces.
Preheat large pot over medium heat. Add oil. Add carrots and onions to pan and cook until tender, 5-10 minutes.
Add garlic, stir to combine.
Add chicken, frozen sweet potatoes, chicken broth, lemon juice, salt, and pepper. Stir to combine. Turn heat to medium-low, and simmer 15-20 minutes until sweet potatoes are fork tender and soup is heated.