Preparation

1. Heat a skillet over medium heat and add the ground beef. Break it up and cook until starting to brown.
2. Add diced onion and cook until softened, about 3-4 minutes.
3. Mix in garlic, chili powder, cumin, paprika, salt, and pepper. Cook until beef is fully browned and seasonings are fragrant.
4. If desired, stir in optional ingredients like green chiles, black beans, or corn. Remove from heat.

Assembly

1. Warm tortillas in a microwave for about 10 seconds under a damp paper towel to make them pliable.
2. Lay a warm tortilla flat. Add a line of cheese, then spoon on some beef filling, and top with more cheese.
3. Fold in the sides and roll tightly like a burrito. Place seam side down.

Cooking

1. For frying: Heat 1-1.5 inches of oil in a deep skillet over medium heat. Carefully place the chimichangas seam side down and fry for 2-3 minutes on each side until golden brown.
2. For baking: Preheat oven to 425°F, brush chimichangas with oil, and bake for 12-18 minutes, flipping halfway.
3. For air frying: Preheat air fryer, spray chimichangas with oil, and cook at 380°F for 8-10 minutes, flipping halfway.