1Cutting a little more than halfway through, divide Spam into 8 sections. Place in a small baking dish.
Starting with the first cut, spread 1/2 tsp. mustard in every other cut. In the same cuts place 1/2 of a pineapple slice.
Sprinkle brown sugar over loaf and bake at 375 degrees for 20 minutes.
To serve, slice through loaf at every other cut so that the pineapple is in the middle of each serving.
I like mine served with mashed potatoes and green beans with cheese.