Italian seasoning mix is a quintessential herb in many kitchens. It seems easier to drop a couple of tablespoons of the premixed blend than each herb individually. Making your own from a kitchen garden is inexpensive and simple.
The herbs you use will vary according to your own herb garden, and your tastes. The typical blend is oregano, sage, basil, thyme, rosemary, and marjoram. Adding garlic or onion powder adds flavor as well and both can be made at home easily.
Dry the chosen herbs by hanging them in a cool, dry place or by using a drying rack. Use a mortar and pestle to grind the dried herbs and combine them in equal parts, or to taste. Use a mason jar to store the mix.
If you've chosen to use garlic or onion powder, dehydrate chopped onions and garlic in a dehydrator or in the oven set to 200 degrees. Once dried and cooled, use a spice or coffee grinder to grind the pieces into a powder. Add to the Italian seasoning mix according to taste.
An example of a good blend is 5 Tbsp each of basil, oregano, and thyme plus 3 Tbsp each of rosemary and sage, then 2 Tbsp of marjoram and onion powder. Add 1 Tbsp of garlic powder.
Use more or less of each herb according to your own taste. Experiment and have fun!