You can pulse the bread in a food processor and thereafter mix the rest of the ingredients in a large bowl. Only make enough for the given recipe, fresh seasoned breadcrumbs shouldn't sit in the fridge for a long period of time.
One note: skip the grated cheese, garlic powder, and cheap sliced bread (buy good bread that you would normally eat with a meal)
Recipe by Scordo.com - Italian Food Recipes and Lifestyle at http://www.scordo.com/recipe/home-made-italian-breadcrumbs.html