I usually make the regular scalloped potatoes but once in a while I will make this one when I am in the mood for scalloped potatoes and am out of milk..I have made this one when I have had company and they enjoyed and asked for the recipe.
Grease a casserole with butter,,,Cook potatoes in lightly salted water until tender-crisp..drain and set aside to cool so you can handle them to slice thin.
Saute onion in 2 tablespoons oil along with the garlic and peppers until tender, stir in the ham, salsa and seasonings.
Arrange1/2 of potatoes in dish sprinkle with 1/2 the parmesan cheese add the vegetables and arrange the rest of the potatoes , parmesan cheese and mozzerella . Bake covered at 375F or until potatoes are tender about 35 minutes, uncover and bake an additional 10 minutes or until golden,nice served with a Caesar salad and garlic bread.