1 unsliced loaf (round is preferable) sourdough bread.
1 pound Monterey Jack cheese, thinly sliced
1/2 cup butter, melted
1/2 cup finely diced green onion, with tops
2-3 tsp poppy seeds
Cut the bread lengthwise and widthwise - without cutting through the bottom crust. Place on a foil-lined baking sheet.
Insert cheese between cuts. Combine butter, onion, and poppy seeds. Drizzle over bread. Wrap in foil; place on a baking sheet. Bake at 350 degrees for 15 minutes. Unwrap. Bake 10 more minutes, or until cheese is melted.
source: The Changeable Table