1 pound ground beef
1 onion, chopped
3/4 cup water
1 pkg. (1 2/4 ounces) taco seasoning
1 can (15 ounces) tomato sauce
1 package(8 ounces) shell macaroni, uncooked
1 can(4 ounces) mild chopped green chilies
2 cups mild shredded Cheddar cheese

In large skillet, brown ground beef and onion; drain fat.
Add water, taco seasoning and tomato sauce; mix. Simmer 20 minutes. transfer to Crockpot.
Stir in macaroni and chopped green chilies. Cover and cook on low for 6-8 hours or high for 3-4 hours.
In last 30 minutes of cooking, top with cheese.