Cut the potatoes about 1/2 to 3/4 inch thick.

Melt the butter and cream cheese together, stir well.

Now, using a spray oil, spray the bottom of a shallow casserole dish. Put a layer of potatoes in the bottom. Cover with half of the cheddar, then sprinkle with salt and pepper.

Pour half of the butter-cream cheese mixture on top of that.

Lay the remaining potatoes on top of the cheese. Add more salt and pepper, the remaining cheddar and top it with the remaining butter. Sprinkle half the thyme on the cheese.

Bake at 350 degrees for 40 to 45 minutes, or until the cheese is golden brown.

Remove from the oven and top with the remaining thyme.

Allow to cool a little before serving.