8 Cheap 3-Ingredient Soups for Seniors Living Alone - No Pot of Leftovers

Eight soups today, and every one makes one bowl. Not one bowl plus a container in the icebox. One bowl, eaten, done, in a pan small enough to wash with one hand.
Three ingredients each. Four are ready in under ten minutes. And number seven does not use a pan at all.
Everything is measured for one person. Two at the table, just double it.