Melt cream cheese in microwave, add all other ingredients(make sure all excess liquid is squeezed out of spinach) in oven safe dish. Place in a 350 degree oven, and bake for 30 minutes, or until slightly browned on top.
You can also place all ingredients in a crock pot and cook on low for 1 1/2 to 2 hours, stirring occasionally. Serve with your favorite chips,
Enjoy! *I have also used other shredded cheeses, whatever I have on hand.