1. 1. In a large pot, heat some oil over medium heat.

2. 2. Add diced onions and garlic, sauté until fragrant.

3. 3. Add boneless chicken breast, carrots, celery, and green onions to the pot.

4. 4. Pour in chicken bouillon and enough water to cover the ingredients.

5. 5. Simmer for about 20-25 minutes until the chicken is cooked through and vegetables are tender.

6. 6. Season with salt and pepper to taste before serving.