Melty orzo with beef mince

4 tbsp olive oil 250 g ground beef 1 onion, finely chopped 1 garlic clove, finely chopped 1 celery stalk, finely chopped 1 carrot, finely chopped 30 ml white wine 20 g tomato paste 200 g orzo pasta 250 ml canned chopped tomatoes 600 ml vegetable broth (1 cube + 600 ml water) ⅓ tsp cinnamon 1 tbsp chopped parsley Yogurt for serving (optional)