01 -
Set the oven to 375°F and allow it to preheat thoroughly.
02 -
Cook rotini pasta in a pot of salted boiling water until nearly al dente, then drain and set aside.
03 -
In a large skillet, heat olive oil over medium heat. Add the ground beef and brown, breaking up any large pieces. Once browned, drain excess fat.
04 -
Return the pan to heat and sprinkle beef with garlic powder, onion powder, salt, black pepper, and ranch seasoning mix. Stir well to coat evenly.
05 -
In a medium saucepan over medium heat, combine cream cheese, sour cream, and milk. Stir constantly until the mixture is smooth and fully blended. Gradually fold in shredded cheddar cheese until fully melted and incorporated.
06 -
In a large mixing bowl, combine cooked rotini, seasoned beef, sweet corn kernels, and the prepared cheese sauce. Mix thoroughly to ensure even distribution.
07 -
Transfer the mixture into a greased 9×13-inch baking dish, spreading evenly.
08 -
Place the dish uncovered in the preheated oven and bake for 25 to 30 minutes, until the cheese topping is bubbling and golden brown.
09 -
Remove from oven and let stand for 5 minutes before serving.