Add oil, red pepper, and onion to the soup pot on medium high heat. Stir and sauté until tender with some browning. Add the minced garlic and let everything sauté for another minute or less (until garlic turns a golden color). Watch it because it can burn quickly if you're not careful.
Add all other ingredients to the pot. Bring to a boil on high heat. Then cover and reduce to a simmer (medium high or medium heat) for 20 to 25 minutes. Chicken should be cooked through when done.
Shred or chop up your chicken. Taste and add extra salt or pepper if you like. Serve as is or garnish with recommended toppings.