Deb DeLoye, Pioneer Electric Cooperative member
Preheat oven to 350 F. Combine the crust ingredients. Press crust mixture into a greased 13x9-inch baking dish. Bake for 20 to 25 minutes or until crust is lightly browned.
In a skillet, brown the ground beef and drain off the fat. Add the taco seasoning and the water into the skillet with the ground beef. Stir to combine. Simmer uncovered for 15 minutes. Spread the ground beef mixture evenly over the baked crust. Sprinkle the crushed corn chips over top of the beef mixture. Then sprinkle the cheddar cheese over the corn chips. Put the casserole back into the oven for 5 to 10 minutes, until cheese has melted.
Let casserole cool for 5 minutes. Cut into squares to serve. Top each serving with shredded lettuce, diced tomatoes, and sour cream as desired.