Osso buco style beef short ribs

Ingredients

• 3 tablespoons flour
• 8-10 pieces beef short ribs — bone-in and boneless mix
• 2 tablespoons olive oil
• 2 tablespoons butter
• 1 whole onion — coarsely chopped
• 3 ribs celery — coarsely chopped
• 3 large carrots — cut into 1/2″ discs
• 1 pound crimini mushrooms (baby bellas) — thick sliced
• 1 whole red pepper — coarsely chopped
• 6 cloves garlic — finely chopped
• 2 whole bay leaves
• 3 tablespoons fresh Italian parsley — finely chopped
• 6 sprigs fresh thyme
• 1 cup dry Marsala wine, or hearty red wine
• 2 cups beef stock
• 14 ounces Italian stewed tomatoes — crushed by hand
• 1/2 cup Israeli couscous — uncooked (optional)
• Salt and pepper — to taste