01 -
Preheat the oven to 165°C. Lightly grease a 23 x 33 cm baking dish with oil or nonstick spray.
02 -
In a large skillet over medium heat, brown the ground beef until no longer pink. Drain excess fat if necessary.
03 -
Add Ranch Style beans, Ro-Tel tomatoes, chopped onion, taco seasoning, condensed cream of chicken soup, and water to the skillet. Stir well and simmer over medium-low heat for 5 minutes, ensuring all ingredients are thoroughly combined.
04 -
Arrange a layer of crushed tortilla chips on the bottom of the prepared baking dish. Spoon half of the beef mixture over the chips, then sprinkle with half of the cheddar cheese. Repeat layers with remaining chips, beef mixture, and top with remaining cheese.
05 -
Cover the dish with aluminium foil and bake in the preheated oven for 20–30 minutes, or until the casserole is bubbling throughout.
06 -
Remove from the oven and allow to rest for 5–10 minutes. Serve individual portions topped with sour cream and salsa to taste.