The classic combination of pear and blue cheese is made even richer with the addition of bacon in this hearty salad. You can substitute endive, escarole, or baby arugula in place of the frisee.
In a small skillet, cook bacon over medium, stirring occasionally, until fat is rendered and bacon is crisp, 9 minutes. With a slotted spoon, transfer bacon to paper towels to drain. Add 2 tablespoons bacon drippings to a large bowl. (If drippings measure less than 2 tablespoons, supplement with oil.) Whisk in lemon juice and season with salt and pepper.
Add frisee, pears, and parsley to bowl and toss to combine. Sprinkle salad with bacon and cheese.