Glenn,
A web search found this one on different sites, and it's reported to be from his 'Cajun Country Cookbook'
It has MSG, and lots of salt!
26 ounces salt
1 1/2 ounces black pepper -- ground
2 ounces red pepper -- ground
1 ounce garlic powder -- pure
1 ounce chili powder
1 ounce Monosodium glutamate -- (Accent)
Mix well and use like salt