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 vegetables evenly on prepared baking sheet. Roast for 10–12 minutes until shrimp are pink and vegetables are tender.
04 - Remove from oven and increase temperature to 450°F.
05 - Lay out 3 tortillas. Distribute half the cheese on top. Spoon shrimp mixture over cheese, then sprinkle with remaining cheese and cilantro. Top each with another tortilla.
06 - Transfer quesadillas to baking sheet. Lightly brush tops with olive oil. Bake for 6–8 minutes until golden.
07 - Flip quesadillas and bake 4–5 minutes more until crisp and golden on both sides.
08 - Let rest 2 minutes. Cut into wedges and serve with sour cream, salsa, lime wedges, and avocado.