Cut potato, carrot, bell pepper, and onion into bite-sized pieces.

Heat oil in a pan, add ground pork, and cook until browned.

Add onion, potato, and carrot. Stir-fry for 2 minutes.

Add water, soy sauce, and sugar. Simmer until vegetables are tender.

Add bell pepper, cook for 2 more minutes.

Season with salt and pepper, then serve.