Italian meatballs with spaghetti

500g pork mince
12 cream crackers
1tbsp dried oregano
1 tsp of Dijon mustard
1 tsp dried rosemary
1 egg
Salt and pepper to season

1 onion chopped
1 red pepper chopped
300g chopped tomatoes
2 garlic cloves
1tsp dried thyme
1 tbsp balsamic vinegar

400g dried Spaghetti
200g grated Grana Padana cheese