Italian seasoning is a blend of spices and herbs that are commonly used in a lot of Italian dishes. Italian seasoning is made of a combination of spices and herbs that can include either basil, oregano, rosemary, parsley, thyme, and marjoram. These are some of the herbs that are commonly used in Italian seasoning. It very much depends on the brand on which herbs get included in the mixture. If you make your Italian seasoning at home, you can decide which herbs are included in your recipe. It is rare but some Italian seasonings can also include ingredients such as black pepper, garlic powder, or crushed red pepper flakes.