Spaghetti Sauce with Ribs

Ingredients

• • The meat of five mild or hot Italian sausages (675 g / 1 1/2 lb, approximately)
  • 2 tablespoons (30 ml) olive oil
  • 2 onions, sweet or plain, finely chopped
  • 4 carrots, peeled and diced
  • 4 stalks celery, diced
  • 4 cloves garlic, finely chopped
  • 1 can 5 1/2 oz (156 ml) tomato paste
  • 2 cans 28 oz (796 ml) plum tomatoes, crushed by hand
  • 2 cans 24 oz (680 ml) tomato sauce
  • 1 cup (250 ml) beef broth
  • 2 lb (1 kg) baby back ribs, cut into two or three sections
  • 2 teaspoons (10 ml) dried oregano
  • Salt and pepper