Heat the cooking oil in a pan.
Saute the garlic and onion until the onion is soft.
Add the chicken slices. Cook for 2 minutes.
Pour-in 1 cup of chicken broth. Cover and let boil. Simmer for 15 minutes.
At this point, the liquid should have been reduced to more than half. Put-in the chayote. Cook for 2 minutes.
Add the shrimp. Cook for 1 minute.
Pour-in the remaining chicken broth. Let boil and cook for 1 to 2 minutes.
Add salt and pepper to taste.
Transfer to a serving bowl. Serve.
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