How much Italian seasoning blend for spaghetti sauce?

For spaghetti sauce, a good rule of thumb is to use about 1 to 2 teaspoons of Italian seasoning blend per 28-ounce can of crushed tomatoes or tomato sauce. You can adjust the amount based on your taste preferences, adding more for a stronger flavor. If you're using other herbs and spices, consider reducing the Italian seasoning accordingly. Always taste and adjust as needed while cooking!