I make my own lemon pepper seasoning but if you prefer to use a commercial lemon pepper seasoning, by all means.
Start by zesting 6-8 lemons until you have 1/2 of lemon zest. Then dehydrate this in a dehydrator or in your oven at the lowest temperature setting.
With a grinder or pestle and mortar, grind up black peppercorns until you have 2 tablespoons.
Combine the dehydrated lemon zest, pepper, onion powder, and garlic powder in the specified quantities above.