"For a plant with such a notorious relative the Corn Poppy has many uses. Young leaves are cooked and used like spinach, or raw as flavoring in soups and salads. The petals are used to make a red syrup used in soups or for coloring. The seeds can be used in cakes, bread, rolls, or pressed for their oil which is an excellent substitute for olive oil. Who as a child (or older) played with the poppy seeds falling off a roll? The rosette of basal leaves before the plant flowers is excellent raw as well. The unripe ovaries are also edible raw."
Invasive plants are Earth's way of insisting we notice her medicines.
Everyone learns what works by learning what doesn't work.