In a large skillet, heat oil over medium-high heat. Sprinkle pork chops with salt and pepper; add to skillet. Saute until a thermometer reads 145°, about 5 minutes per side. Remove to a serving platter; squeeze juice from lemon over chops. Tent with foil; let stand at least 5 minutes before serving., For garlic spinach, heat oil over medium-high heat in same skillet. Add garlic; cook until it just begins to brown, about 45 seconds. Add spinach; cook and stir just until wilted, 2-3 minutes. Sprinkle with salt and pepper. Remove from heat; add lemon juice. Transfer to serving platter. Remove foil from pork; serve spinach with chops.