Saute onions, garlic, chili powder, gingeroot, coriander, salt, and pepper together until onions are translucent. Put into greased crockpot and add butternut squash kidney beans,diced tomatoes ,scotch bonnet pepper, vegetable stock. Cook on low for 8-10 hours (or high for 4-5). In the last 30 minutes of cooking, add the green bell pepper and coconut milk.