Mini Spinach Artichoke Bread Bowls

Name: Mini Spinach Artichoke Bread Bowls
Ingredients: Two 1-pound loaves frozen white bread dough, thawed; All-purpose flour, for dusting; 5 tablespoons butter, melted; 8 ounces cream cheese, at room temperature; 1/2 cup sour cream; 1/4 cup mayonnaise; 1 clove garlic, grated; One 10-ounce box frozen leaf spinach, thawed, drained, squeezed dry and coarsely chopped (see Cook’s Note); One 14-ounce can artichoke hearts, drained well and coarsely chopped; 1/2 cup shredded whole-milk mozzarella; 3/4 cup freshly grated Parmesan; Kosher salt and freshly ground black pepper