Open the can of tomato paste and put into a large bowl, add 2 tomato paste cans of water, add some spices, such as oregano, thyme, rosemary, etc, season with salt and pepper, whisk, there, you just made tomato sauce. Pour this into the slow cooker (crock pot).
Boil the cob of corn, if you like corn in the chili, boil two, then remove and cut the kernels from the cobs, and add this to the slow cooker.
Open the can of tomatoes, and drain the juice into the slow cooker, then pour the tomatoes into a large bowl, using a knife and fork, dice them, add to the slow cooker.
Add to the slow cooker, 2 cups of cooked black beans, 2 cups of red kidney beans, the chopped onion, the diced chilies, all the spices. (Adding the spices, you just made Taco Seasoning). Add the diced chicken breasts. Mix everything together.
Cook on Low setting for 8-10 hours, or High setting for 4-6 hours. Serve topped with fresh chopped cilantro, sour cream, grated Cheddar cheese, up to you.