Preheat oven to 230°C/450°F
Drizzle a baking sheet with 1tbs of oil and spread the sweet potatoes evenly on the tray. Roast in for 20 minutes until they start to caramelize.
Heat 2tbs of olive oil in a large pot, add the onion and red pepper and cook on a medium heat until the onion starts to turn translucent. Then add the garlic and cook together for another 30 seconds.
Add in the diced tomatoes, tomato sauce, beans, spices, salt, and unsweetened cocoa powder. Cover and allow to cook together for about 10-15 minutes or until the sweet potatoes are finished roasting.
Once the sweet potatoes are finished roasting, add them to the chili along with the seitan and corn. Allow to cook together for another 10 minutes.
Remove from the heat and add the lime juice. Serve with warm crusty bread or tortilla chips!
This chili stays good in the fridge for 4 days and freezes well for longer storage. The sweet potatoes may be softer after freezing but the taste will be just as delicious!