Themes and Motifs
One theme for magical realism is food as eating is a naturally mundane thing to do, and yet fantastic elements can be added. An example of this would be Like Water for Chocolate, where the main character transfers her emotions into the food she is cooking.
Another common theme is nature. Stories frequently take place in less populated areas, like in the woods or by the beach, and this is because it involves nature and people's connection to the world around them.
Fate or destiny can also be a theme, though if too much focus is on prophecies etc. the story begins to move into Fantasy rather than Magic Realism.
The theme of rebellion or challenging authority is also common, even if it only takes place at home against a strict patriarchal society for example.