01 - Preheat oven to 425°F. Line a large rimmed baking sheet with parchment paper or foil.
02 - In a large bowl, combine shrimp, bell peppers, onion, garlic, jalapeño, olive oil, chili powder, cumin, smoked paprika, coriander, salt, black pepper, cayenne, and lime juice. Toss until evenly coated.
03 - Spread the shrimp and vegetable mixture evenly on the prepared baking sheet. Roast for 10–12 minutes, until shrimp are pink and vegetables are tender.
04 - Remove shrimp mixture from the oven. Increase oven temperature to 450°F.
05 - Lay out 3 tortillas on a clean work surface. Distribute half of the cheese evenly on top. Spoon the shrimp and vegetable mixture over the cheese, then sprinkle with remaining cheese and chopped cilantro. Top each with another tortilla to form quesadillas.
06 - Transfer the assembled quesadillas to the baking sheet. Lightly brush the tops with olive oil. Bake for 6–8 minutes until golden.
07 - Flip the quesadillas and bake for another 4–5 minutes, until golden and crisp on both sides.
08 - Remove from oven and let rest for 2 minutes. Cut into wedges and serve with sour cream, salsa, lime wedges, and sliced avocado.