I have taken the liberty of including two of probably the most used seasoning salts in the US
As Lawry's Seasoned Salt used to be unavailable in the UK, I post the following recipe.
Lawry's Seasoned Salt Clone
2 Tblspns Salt
2 tspns Granulated Sugar
1/2 tspn Paprika
1/4 tspn Tumeric
1/4 tspn Onion Powder
1/4 tspn Garlic Powder
1/4 tspn Cornstarch (Corn Flour)
Combine and store in an airtight container.
hope that these are of some use to you
kind regards
Parson Snows