Slow Cooked Beef & Mushroom Pie - Wholesome by Sarah

Ingredients

• 800 g beef chuck steak (cut into 2–3 cm chunks)
• 2 tablespoons extra virgin olive oil
• 3 bacon rashers (chopped)
• 3 cups mushrooms (sliced)
• 1 brown onion (large, chopped)
• 2 garlic cloves (sliced)
• 2 celery sticks (chopped)
• 2 tablespoons plain flour
• 2 tablespoons dried herbs (Italian mix or any of your choice)
• 1 tablespoon tomato paste
• 400 g diced tomatoes (tin )
• 1 cup red wine (or extra stock if preferred)
• 1 1/2 cups beef stock
• 3 bay leaves
• cracked black pepper (to taste)
• 2 cups frozen peas
• 1 puff pastry (sheet, thawed)
• 2 eggs (whisked, for egg wash)
• 1 tablespoon sesame seeds (white or black)