Preheat the oven to broil. Cut the Italian loaf in half and place side by side on a baking sheet. Spread each half with 3 Tbsp of butter and place into the oven to lightly toast. This will only take minutes, so, watch the bread closely.
While the bread is toasting, melt the remaining 2 Tbsp of butter in a skillet. Add the chopped green onions and minced garlic. Saute for 1-2 minutes over medium high heat then remove from the stove.
In a mixing bowl, mix the sauteed garlic and onions with the remaining ingredients.
Divide the mixture between the two toasted bread halves, and spread from edge to edge.
Return to the oven. Broil for 5 minutes or until the cheesy is golden and bubbly.
Slice and serve immediately.