Lyonnaise salad takes its name from the French city of Lyon, where it originated. Lyon is well-known for its rich culinary heritage. The salad is a delicious combination of greens, crisp lardons (bacon), warm poached egg, and croutons. Traditionally, the greens are bitter frisée, but arugula or other bitter greens work just as well. I personally use mixed greens and pancetta, as this is the closest equivalent to lardons in the US. It comes with a delicious vinaigrette, and makes for a full meal.
This is my own recipe.