Preheat oven to broil with rack in top third position. Heat oil in a 10-inch ovenproof skillet over medium heat. Add poblano, onion and corn; cook, stirring occasionally, until softened, about 10 minutes. Add garlic; cook, stirring constantly, until fragrant, about 1 minute. Remove from heat.
Stir in beans, enchilada sauce, chili powder, cumin, paprika and salt. Fold in tortilla strips until evenly combined; sprinkle with Cheddar. Broil until the cheese is melted, about 3 minutes.
Top with radish, scallion, cilantro and sour cream. Serve with lime wedges, if desired.
