01 - 
                In a large, cast iron or heavy-bottom skillet, pour in enough vegetable oil to fill it 2 inches full. Heat oil over low heat until it reaches 375°F.
              
              
              
                02 - 
                Preheat oven to 375°F. Grease a large baking sheet with nonstick spray.
              
              
              
                03 - 
                Heat 2 tablespoons of vegetable oil in a large skillet over medium-high heat. Add diced onion and cook until softened. Stir in garlic, chili powder, oregano, and cumin, cooking until fragrant (about 1 minute). Add shredded chicken, salt, pepper, and green chilies, cooking for 5 minutes until thoroughly heated.
              
              
              
                04 - 
                Warm the tortillas. Add 1/2 cup of chicken mixture to the center of each tortilla, top with 3 tablespoons of shredded cheese, and fold the sides over the mixture. Fold the bottom over the sides and roll up tightly. Place seam side down.
              
              
              
                05 - 
                Using tongs, lower one chimichanga at a time into the hot oil, seam side down. Hold chimichanga with tongs to prevent opening. Fry until golden brown on both sides (1 to 2 minutes). Transfer to a plate lined with paper towels.
              
              
              
                06 - 
                Place assembled chimichangas onto a greased baking sheet. Spray tops with nonstick spray. Bake for 20 to 30 minutes until golden brown.
              
              
              
                07 - 
                Serve warm with salsa, sour cream, guacamole, pico de gallo, and lettuce.