Melt, margerine in a pot.
Add, the onion.
Cook, until translucent over medium heat.
Add, the milk and the chicken broth.
Add, the velveeta
Stir, frequently until melted.
Add, the ham and the vegetables.
Cook, until heated through.
I don't always use frozen vegetables. I use whatever is handy. And because we love mushrooms I always add a couple small cans to the soup too. But it's good no matter what.