saute onion, pepper, celery, garlic and jalapeno for 7 minutes. stir in tomatoes cook for 4 minutes. stir in beans, crushed tomatoes and seasonings. cook about 30 minutes over medium low. stirring occasionally. In a seperate pan, add diced sweet potato to boiling water, cook 15 minutes until tender and drain in colander. when chili has been cooking 25 minutes add potato. ladle chili into bowls and garnish with scallions. serve with cornbread.