Brown and crumble beef over medium-high heat.drain grease,add taco seasiningand and water called for on ok.stir till mixture comes to a boil.reduce heat to low and simmer 10 minutes.remove from heat and let cool slightly.

In a large bowl add chopped lettuce,beans,tomato,and cheese.add slightly cooled beef and toss.

When ready to serve add Doritos and dressing.