Hearty Italian Style Beef Stew

Name: Hearty Italian Style Beef Stew
Ingredients: 1.5 lbs stewing beef, diced; 3 celery ribs, diced; 2 medium/large carrots, diced; 1 large onion, diced; 4 garlic cloves, minced; 230 g cremini mushrooms, cut into quarters; 1 can cannellini beans, drained; 1 tbsp tomato paste; 2 tsp Italian seasoning; 1 tsp dried oregano; 2 tsp dried basil; 2 dried bay leaves; 1 cup red wine; 1/2 cup beef stock; 1.5 tbsp flour or corn starch; 1 large can diced tomatoes; Parsley, chopped (garnish, optional); to taste Salt and pepper; 3 tbsp olive oil