Mushroom & Lentil Stew

Ingredients

• 2 tbsp olive oil or butter
• 1 onion, diced
• 4 cloves garlic, thinly sliced
• 250 g button mushrooms, sliced
• 2 tbsp tomato paste
• 1 tsp harissa paste
• 1 cup dried green lentils, thoroughly rinsed
• 1 tbsp soy sauce
• 3 cups chicken broth or vegetable stock
• 34 sprigs thyme
• Salt
• Pepper
• ¼ cup finely grated parmesan cheese, to serve