Mixed Mushroom Lentil Cottage Pie - Produce Made Simple

Ingredients

• 4 tbsp olive oil, divided
• 227g (8oz) white mushrooms, sliced
• 227g (8oz) cremini mushrooms, sliced
• 200g (7oz) king oyster mushrooms, sliced
• 1 yellow onion, diced
• 2 large carrots, peeled, halved, and sliced
• 3 stalks celery, chopped
• 4 cloves garlic, minced
• 3 tbsp unsalted butter
• 3 tbsp flour
• ½ cup white wine
• 1 tbsp tomato paste
• 1 tbsp Dijon mustard
• 3 cups vegetable stock
• ¼ cup soy sauce
• 2 tsp honey
• ¾ cups dried green lentils
• 142g (5oz) green kale, stalks removed and coarsely chopped
• 4-5 Yukon gold potatoes, peeled and coarsely chopped
• 1 clove garlic, minced
• 1 tsp salt
• ¼ cup chives, finely chopped
• 2 egg yolks