In your slow cooker combine your thawed hash browns, broth, diced vegetables and spices. Stir to combine.
Cook on low for about 6 hours or until your vegetables are your desired tenderness.
Remove lid at this time, take some broth out and put it into a bowl with your room temperature cream cheese and whisk together until it is somewhat smooth, dump back into your crockpot and stir in slowly.
Add in your diced ham and evaporated milk and stir until combined.
Put lid back on and cook for an additional 20 minutes.
Serve topped with cheese and green onions if desired.