Heat 2 nonstick skillets over medium high heat. In the first, add 2 tablespoons oil, jalapeno, garlic and onion for black beans. Saute 2 or 3 minutes, add beans and seasonings and cayenne pepper sauce. Reduce heat to low and simmer. In the second skillet, add oil and chicken. Season chicken with chili powder and salt and lightly brown the meat, 2 to 3 minutes. Add garlic, red peppers and chorizo and saute 5 to 6 minutes, then reduce heat to low.
Char and soften tortillas by holding them over hot burner 15 seconds on each side. If you do not have gas burners, heat your dry skillet you used for salsa and cook tortillas 1 at a time in the pan 15 seconds on each side. Pile tortillas near stove and line up your toppings. Serve fillings out of the pans you cooked them in.
Heat a skillet over high heat. Add whole tomatoes and a seeded jalapeno, skin side down, and the thick slices of onion. Allow the tomatoes, pepper and onion to char on all sides. Add blackened tomatoes, pepper and onions to a food processor. Pulse grind the salsa with mint and cilantro leaves. Season salsa with coarse salt.
Combine all ingredients in a food processor and process until the sour cream is pale green and scallions are finely chopped. Serve with burritos.