Sheet-Pan Pork, Vegetables and Lentils

Ingredients

• • 1 red onion, cut into half moons ½ inch (1 cm) thick
  • 1 sweet potato, cut into half moons ½ inch (1 cm) thick
  • 3 tbsp (45 ml) olive oil, plus more for drizzling
  • 1 tbsp brown sugar
  • 1 tsp sweet paprika
  • ½ tsp ground cumin
  • 2 pork tenderloins, about ¾ lb (340 g) each
  • 1 can (19 oz/540 ml) brown lentils, rinsed and drained
  • 4 cups (120 g) kale, stems removed, leaves torn
  • Tzatziki, for serving