Preheat oven to 425°F. Line a sheet pan with foil and set a wire rack on top.
Stir cream cheese and sour cream in a large bowl until smooth.
Mix in salsa, green chiles, lime juice, cumin, chili powder, garlic powder, onion powder, paprika, salt, and pepper.
Fold in chicken, Monterey Jack, cheddar, cilantro, and green onions until evenly combined.
Warm tortillas in the microwave under a damp towel until pliable, about 30 to 45 seconds.
Spoon filling across the lower third of each tortilla. Tuck sides and roll tightly into chimichangas.
Place seam side down on the rack. Brush all sides with melted butter or oil.
Bake 18 to 22 minutes, turning once, until golden and crisp. Broil 1 minute if you want extra crunch.
Rest 5 minutes before serving. Add your favorite toppings and enjoy.
Notes
Variation: Swap half the chicken for black beans and corn, or use pepper jack for extra heat. For air fryer, cook at 375°F for 8–10 minutes, flipping once. Serve with shredded lettuce, pico de gallo, and a drizzle of salsa verde. To store, refrigerate up to 3 days; re-crisp in a 375°F oven for 8–10 minutes.This recipe is an original creation inspired by classic Creamy Baked Chicken Chimichangas flavors. All ingredient ratios and instructions are independently developed.