To save time, you can use pre-sliced potatoes or even frozen hash browns.For a creamier texture, you can add a layer of béchamel sauce between the beef and potato layers.For a spicier flavor, you can add red pepper flakes or chili powder to the beef mixture.To make it a one-pot meal, you can cook the beef and vegetables in the baking dish and then layer the potatoes and cheese on top before baking.