Preheat your oven to 400°F.
Spread the red bell peppers, poblano peppers, red onion, and zucchini on a large baking sheet. Drizzle the olive oil over the vegetables and toss until evenly coated.
In a small bowl, combine the ancho chili powder, chipotle chili powder, and salt. Sprinkle this mixture over the vegetables, tossing once more to ensure they’re generously seasoned.
Roast the vegetables in the preheated oven for 35 minutes, stirring halfway through, until they’re tender and slightly charred in spots.
Once roasted, transfer the vegetables to a large serving bowl. Drizzle with the sherry vinegar and sprinkle with chopped cilantro and crumbled cotija cheese.
Give everything a final toss to mix, and taste to adjust seasoning if needed.
Serve warm or at room temperature. Enjoy!