Using a firm textured bread, cut slices into 1/2 inch cubes. Preheat oven to 300 degrees F. (150 degrees C). Put bread cubes in two 13 X 9-inch baking pans. Toast bread cubes in oven for 45 minutes, stirring occasionally. Remove from oven and cool slightly. Stir in oil, onion, parsley flakes, garlic salt, sage and seasoned pepper.
Lightly toss bread cubes with seasonings to coat cubes. Put in a large airtight container and label Herbed Stuffing Mix. Store in a cool, dry place and use within 3 to 4 months.
