Step 1

Preheat grill to high.

Step 2

Grill poblanos, turning occasionally, until blistered all over and slightly charred in spots, 10 to 15 minutes. Transfer to a large bowl, cover with plastic wrap and set aside for about 20 minutes to loosen the skins.

Step 3

Peel the peppers with your fingers. (It's OK if a little skin is left behind. For the best flavor, don't rinse the peppers.) Cut them open lengthwise, remove the seeds, stem and white membrane, then thinly slice.

Step 4

Heat oil in a large skillet over high heat until it shimmers. Add onion and cook, stirring occasionally, until wilted and beginning to brown at the edges, 8 to 12 minutes. Reduce heat to medium, add garlic and cook, stirring occasionally, until fragrant, about 30 seconds. Add the poblano strips and salt and cook, stirring occasionally, until hot, about 5 minutes more. Stir in Worcestershire and remove from heat. Drizzle lime juice over the top. Serve warm or at room temperature.