Beef and barley casserole

Name: Beef and barley casserole
Cuisine: European
Ingredients: Extra virgin olive oil spray; 800g Aberdeen Angus diced braising steak; 1 large onion, roughly chopped; 2 sticks celery, roughly chopped; 1 large carrot, cut into cubes; 1 tbsp Cooks’ Ingredients Sundried Tomato Paste; 2 cloves garlic, finely chopped; 200ml red wine; 1 beef stock cube; 1 tsp peppercorns, lightly crushed; 400g can chopped tomatoes; 3 thyme sprigs; 2 bay leaves; 75g Waitrose LOVE Life pearl barley; 2 tbsp cider vinegar; Large handful of parsley, chopped; Seasonal vegetables, such as greens or cabbage, to serve