Vegan Taco Cups with Chili con Sweet Potato

Ingredients

• 18 soft taco shells
• 1 sweet potato
• 2 cloves garlic
• 2 onion
• 1 carrot
• 1 bell pepper
• 1 can kidney beans
• 1 tsp spicy ground paprika
• 1 can chopped tomatoes
• 100 ml (1/2 cup) water (if needed)
• 4 tbsp tomato puree
• 1 tsp ground cumin
• 1 tbsp dried oregano
• 1 tbsp dried basil
• 1 tsp chili powder
• 50 g (2 oz) walnuts
• 1 tsp soy sauce
• 1 tsp agave syrup
• 1 lime
• guacamole for serving
• cilantro for serving
• salt
• pepper
• vegan sour cream for serving (see recipe below)