Dorito Casserole

3 lb. ground beef
1 large onion chopped
1 clove garlic chopped
dash salt 
dash black pepper
1-13 oz. can evaporated milk
1-10 3/4 oz. can cream of chicken soup  
1-10 3/4 oz. can cheddar cheese soup
cheddar cheese shredded
doritos
Brown all of these ingredients in a large pan, drain off the 
grease. Add evaporated milk, cream of chicken soup and cheddar 
cheese soup. Line the bottom of a 19 by 13 inch pan with layers 
of crushed (not finely crushed) doritos, then add some meat 
mixture, another layer of doritos and continue this until you 
reach the top of the dish. Put in an oven preheated to 350 
degrees for 10-15 minutes. Melt cheese on top. It's good!