1Cook and drain pasta as directed on package, omitting salt.
2Meanwhile, in 2-quart saucepan, heat tomatoes to boiling. Stir in pasta, beans, lime peel, cumin and bell pepper. Reduce heat to low; cover and cook 2 to 3 minutes, stirring occasionally, until hot. Garnish with sour cream, lime and cilantro. Squeeze lime over pasta.