Cajun Crawfish Bread

mayonnaise

Tbsp melted butter

cup shredded mozzarella

fresh grated Parmigiano reggiano cheese

sliced green onion tops

garlic powder

crawfish tails, finely chopped

kosher salt

ground black pepper

loaf French bread, cut in half lengthwise

I also think it would be fabulous with chopped, drained artichoke hearts mixed in.  Perhaps about 1/4 cup or so.