Prep: 1. Mince garlic. Make: 1. Preheat broiler. 2. Cook garlic in oil in a 10-inch cast-iron or other ovenproof skillet over moderate heat, stirring occasionally, until golden, about 2 minutes. Discard garlic. 3. Add arugula to pan and cook, stirring, until wilted, 1 to 2 minutes. 4. Whisk eggs, salt, and pepper, then pour over arugula in skillet and cook, undisturbed, over medium heat until almost set, 5 to 6 minutes. 5. Sprinkle cheese evenly on top and broil 4 to 5 inches from heat until eggs are just set and cheese is melted, 1 to 2 minutes.