Add bell pepper mixture and corn to skillet; cook and stir 1 minute. Cover and cook 2 to 3 minutes, stirring twice, until crisp-tender. Stir in beef, salsa, lime juice, chili sauce and cumin. Cook 2 to 3 minutes, stirring occasionally, until hot. Stir in cilantro. Divide rice among bowls. Top with beef mixture and tortilla strips.