If you see the lettuce in the garden, then such dream promises you happy moments of your life. Perhaps you will be able to enjoy the tranquility and vital aspects of the life. When you are planting the lettuce in a dream, then it means you will be the cause of your illnesses. If you bought the lettuce n a dream, then it means you will suffer the disappointments at things you are doing. If you ate the lettuce, then such dream warns you of the dishonest behavior from the significant other.
Read more about dreaming of Lettuce in other dream meanings interpretations.