Given the task definition and input, reply with output. In this task, you will be presented with the directions of a recipe separated by "," and have to fill in the "___" which is a step that is missing from the recipe.

Cook hamburger, salt and onion.,Layer baking dish with Doritos.,Put meat mixture on top of Doritos.,Mix soups and Ro-Tel and pour mixture over meat.,Bake at 350 until it bubbles. Remove from oven and top with grated cheese.,Return to oven until cheese melts.,______
Sprinkle with crumbled Doritos.