1 unsliced loaf sourdough bread
12-16 ounces Monterey Jack cheese, thinly sliced
1/2 cup butter, melted
1/2 cup finely diced green onion
2 teaspoons poppy seeds

1 unsliced loaf sourdough bread 12 -16 ounces Monterey Jack cheese, thinly sliced 1/2 cup butter, melted 1/2 cup finely diced green onion 2 teaspoons poppy seeds

Preheat oven to 350 degrees.
Cut the bread lengthwise and widthwise without cutting through the bottom crust. This can be a little tricky going the second way but the bread is very forgiving.
Place on a foil-lined baking sheet. Insert cheese slices 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 the bread and bake 10 more minutes, or until cheese is melted.