Mushroom & Lentil Wellington

Ingredients

• 3 tbsp olive oil
• 1 white onion
• 2 cloves garlic (or 1 tsp garlic powder)
• 400 g mushrooms
• 470 g green lentils (two tins)
• 1 tbsp mixed herbs
• 1 tbsp soy sauce
• 1 roll puff pastry
• 1 tbsp oat milk (to glaze)