Spaetzle with Chicken and Arugula

Ingredients

• • 1/2 lb (225 g) boneless, skinless chicken thighs, diced
  • 1/2 lb (225 g) white mushrooms, quartered
  • 1 onion, finely chopped
  • 1 garlic clove, finely chopped
  • 1/4 cup (60 ml) olive oil
  • 1 1/2 cups (375 ml) chicken broth
  • 2 cups (500 ml) cherry tomatoes, halved
  • 5 oz (140 g/6 cups) arugula, chopped
  • 3/4 lb (340 g) dry spaetzle (see note)
  • 3/4 cup (180 ml) Parmesan cheese, freshly grated