A dried blend built around oregano and basil, usually with thyme, rosemary and marjoram, sold as a single-jar shortcut for tomato-based cooking.
What it does in a recipe: A one-step Mediterranean herb base for sauces, dressings and roasts, added early like any dried herb. Pick the swap that covers that job — the ratios below are written so you can act on them without doing any arithmetic.
Allergen checkSwapping one commercial blend for another does not tell you anything about its fillers; wheat-based anti-caking agents turn up in some. Check both labels if you are cooking for someone who avoids gluten, and confirm directly with the maker in a case of coeliac disease.
Dried oregano alone
In a pinch
1 tbsp Italian seasoning = 2 tsp dried oregano
Oregano is the blend's loudest voice, so a slightly smaller amount of it alone lands at a similar overall intensity.
Trade-offSharper and flatter, with none of the blend's roundness. Fine on a pizza, thin in a slow-cooked sauce.
Blends age as a unit, and the softest herbs in the jar fade first. A two-year-old jar of Italian seasoning is mostly rosemary by the time you get to the bottom.
Cooking around an allergy? Diet tags here describe the ingredient itself, not any particular brand. Processed products change formulation without notice and shared production lines are common, so read the label on everything you use. A severe allergy is a medical matter — confirm with the manufacturer or your clinician rather than relying on a substitution chart.