Rich tomato beef casserole

Name: Rich tomato beef casserole
Prep time: 15 min
Cook time: 2 h 15 min
Total time: 2 h 30 min
Cuisine: European, Mediterranean, French
Ingredients: 1/2 cup plain flour; 1kg beef chuck steak, trimmed, cut into 3cm pieces; 2 tbsp olive oil; 2 leeks, trimmed, washed, thinly sliced; 2 garlic cloves, crushed; 2 x 425g cans chopped Italian tomatoes; 2 tbsp tomato paste; 2 tbsp brown vinegar; 2 tbsp Dijon mustard; 1/4 cup flat-leaf parsley leaves, roughly chopped; 500g cooked macaroni pasta, to serve