Mushroom and Walnut Taco Meat - Good Eatings

Ingredients

• 2 tbsp avocado or rapeseed oil
• 1 white onion
• 4 garlic cloves
• 400 g chestnut mushrooms
• 100 g shiitake mushrooms
• 2 tbsp tomato paste
• 2 tsp dried oregano
• 1 tsp cumin
• 1 tsp smoked paprika
• 0,25 tsp chili flakes
• Salt, to taste
• 1 cup toasted walnuts