After New Years, I had leftover ham and wanted to use it up. I love Herbs de provence, potatoes, ham and peas and decided to make a quick and easy casserole, based on scalloped potatoes. This is a very versatile recipe, layered like scalloped potatoes it works beautifully. In a hurry, make it the casserole way, just throw all the ingredients except for the garnish in a large bowl and mix well. Next pour the mixture into a prepared dish, garnish and place in the oven as is. (If you are making it this way you may want to coarsly chop the onions and ham) It is a very tasty dish prepared either way.