It refers to a dish typically consisting of:
* Greens: Lettuce, spinach, kale, etc.
* Vegetables: Tomatoes, cucumbers, onions, peppers, etc.
* Other ingredients: Cheese, nuts, fruits, beans, etc.
* Dressing: Vinaigrette, mayonnaise, etc.
The exact composition of an ensalada can vary greatly depending on the region, cuisine, and personal preference.
Do you have any specific questions about ensalada, like types of ensalada, ingredients, or how to prepare it?