Cut the top fourth off the loaf of bread; set top aside.
Carefully hollow out bottom, leaving a 1/2 inch shell.
Cube removed bread; set aside.
In a bowl, combine the process cheese, sour cream and cream cheese.
Stir in the ham, green onions, chilies and Worcestershire sauce.
Spoon into bread shell; replace top.
Wrap tightly in heavy-duty foil and place on a baking sheet and bake at 350 degrees for 60-70 minutes or until the filling is heated through.
Meanwhile, toss reserved bread cubes with oil and butter.
Place in a 15 inch x 10 inch x 1 inch baking pan.
Bake for 10-15 minutes or until golden brown, stirring occasionally.
Unwrap loaf and remove bread top; stir filling.
Serve with vegetables and toasted bread cubes.
Ready in 1 hour and 15 min.