Again, since you are making your sandwich at home, there is no particular order you have to put your veggies on your sandwich in (plus everyone wants different things on their sub). In general, you might consider starting lettuce on first and then working your way through the larger vegetables and on to the olives/pickles/smaller things you might want..
Warning signs that a child may have pica include: 1  eating of nonfood items, despite efforts to restrict it, for a period of at least 1 month or longer. 2  the behavior is considered inappropriate for your child's age or developmental stage. 3  the behavior is not part of a cultural, ethnic, or religious practice.
People with the disorder pica compulsively eat items that have no nutritional value. An affected person might eat relatively harmless items like ice or potentially dangerous items like flakes of dried paint or pieces of metal. In the latter case, the disorder could lead to serious consequences such as lead poisoning.