Crispy Chicken Thighs with Bacon and Wilted Escarole

Name: Crispy Chicken Thighs with Bacon and Wilted Escarole
Ingredients: 4 large skin-on, bone-in chicken thighs (about 1½ pounds total); Kosher salt, freshly ground pepper; 1 tablespoon vegetable oil; 4 slices bacon, coarsely chopped; 1 shallot, finely chopped; ½ teaspoon crushed red pepper flakes, plus more for serving; 1 head of escarole, torn into large pieces; 1 lemon, quartered