Here's what it says on the back of my Spike jar:
salt and sea salt crystals
special high flavour yeast
hydrolized vegetable protein (from soybeans)
mellow toasted onion
celery leaf powder
celery root powder
ripe white pepper
orange and lemon peel
sweet red and green bell peppers
sweet hungarian paprika
plus a delightful herbal bouquet of the best oregano, sweet basil, marjoram, rosemary and thyme.
Whew! I wonder how they came up with that recipe? Explosion in the spice cupboard maybe?