Preheat oven to 325 degrees F. Line a large cookie sheet with aluminum foil.

Slice bread in half lengthwise. Slice green Manzanilla olives crosswise into approximately 1/8-inch slices.

In a large bowl, mix together the remaining ingredients. Spread desired amount of topping mixture over top of each half of bread.

Bake at 325 degrees F for 25-30 minutes, or until cheese is melted and bubbly and just beginning to brown.

This may either be served as a main or appetizer. If serving as a main, cut each half of finished bread in half crosswise. If serving as an appetizer, cut each baked half loaf into 2-inch slices.

Garnish with additional sliced green onion if desired.

Serves 4 as a main course, and about 8 as an appetizer.