Chi-Chi's Baked Chicken Chimichangas

Ingredients:
• 2 cups cooked shredded chicken
• 1 cup shredded Monterey Jack cheese
• 1 cup shredded cheddar cheese
• 1/2 cup salsa
• 1/4 cup diced green chilies
• 1 teaspoon ground cumin
• 1 teaspoon chili powder
• 1/2 teaspoon garlic powder
• 1/4 teaspoon cayenne pepper (optional)
• Salt and pepper, to taste
• 6 large flour tortillas
• Cooking spray
• Sour cream, guacamole, and salsa (for serving)