Cut the onion, carrot, potato, and broccoli into bite-sized pieces.
Heat olive oil in a pan and sauté the onion.
Add the carrot, potato, and broccoli, and stir-fry for 2-3 minutes.
Add chicken breast and cook until done.
Pour in milk and water, then bring to a boil.
Add heavy cream and season with salt and pepper.
Simmer on low heat for about 10 minutes to finish.