Recipe Trolley | Best Steak Pie recipe with mash and green beans

Ingredients

• 1 red onion, chopped
• 2 carrot, chopped
• 2 stalks celery, chopped
• 800 g stewing steak
• 20 g plain flour
• 500 ml dark ale
• 1 beef stock cube, make 500ml
• 2 sprigs thyme
• 2 tbsp brown sauce
• 4 tsp english mustard
• 1 eggs, Beaten
• 750 ready rolled shortcrust pastry
• 200 g green beans
• 8 potatoes