Traditional stuffed portabella mushrooms

Crimini mushrooms, low moisture part skim mozzarella cheese (pasteurized milk, cheese cultures, salt, enzymes, potato starch, canola oil and cellulose powder added to prevent caking, natamycin [a natural mold inhibitor]), panko bread crumbs (wheat flour, contains 2% or less of the following: sugar, yeast, soybean oil, salt), onion, parmesan cheese (pasteurized part-skim cow's milk, cheese cultures, salt, enzymes), powdered cellulose added to prevent caking, natamycin (a natural mold inhibitor). worcestershire sauce (distilled vinegar, molasses, corn syrup, water, salt, caramel color, sugar, spices, anchovies, natural flavor (contains soy), tamarind), pepper jack cheese (pasteurized milk, jalapeno peppers, salt, cheese culture, enzymes, potato starch and powdered cellulose [to prevent caking], natamycin [natural mold inhibitor]), cooking sherry (sherry wine, salt, potassium metabisulfite [ to protect color], potassium sorbate [preservative]), garlic, parsley, basil, sage, black pepper.