Stuffed Zucchini (Kousa Mahshi)

Ingredients

• • 12 whole cousa squash or 6 green zucchini, halved crosswise (see note)
  • 2 tbsp (30 ml) olive oil
  • 1/3 lb (150 g) ground beef
  • 1/4 cup (60 g) basmati rice, rinsed and drained
  • 2 tbsp chopped mint
  • 2 garlic cloves, finely chopped
  • 1/2 tsp salt
  • 1/8 tsp ground allspice
  • 3/4 cup (180 ml) chicken broth
  • 3/4 cup (180 ml) strained tomatoes
  • Plain yogurt (optional)