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, pepper, cayenne, and lime juice. Toss until evenly coated.
03 - Spread shrimp and vegetable mixture evenly on prepared baking sheet. Roast for 10–12 minutes until shrimp are pink and vegetables are tender.
04 - Remove shrimp mixture from oven. Increase oven temperature to 450°F.
05 - Lay out 3 tortillas on a clean work surface. Distribute half the cheese evenly on top. Spoon shrimp and vegetable mixture over cheese, then sprinkle with remaining cheese and cilantro. Top each with another tortilla.
06 - Transfer assembled quesadillas to baking sheet. Lightly brush tops with olive oil.
07 - Bake for 6–8 minutes, then flip and bake for another 4–5 minutes until golden and crisp.
08 - Remove from oven and let rest 2 minutes. Cut into wedges and serve with sour cream, salsa, lime wedges, and avocado.