Italian seasoning is a blend of dried herbs and spices used to flavor many Italian dishes. The main herbs commonly used are oregano, basil, thyme, and rosemary. Some recipes also include marjoram, parsley, sage, and red pepper flakes. Garlic powder is another optional ingredient that can be added to the blend. The exact proportions of each herb can vary depending on the recipe or the spice company. Homemade Italian seasoning can be made by combining the desired herbs in a small mixing bowl and mixing them together. It can be used to season pasta sauces, chicken, soups, and more.