Chili Mac

I can't remember where I found this one.  I have it written down on a piece of paper and shoved in my cook book.  I usually add frozen mixed veggies to this and a teaspoon or so of sugar for sweetness.

8 oz. elbow macaroni
1 onion, minced
1 tsp. chili powder
1 can kidney beans
1 lb. ground beef
1 c. water
1 tsp. salt

Cook macaroni. Brush large skillet with oil, add ground beef and onion, brown. Add macaroni, water, chili powder, salt and kidney beans. Cover, simmer for 15 minutes. Stir occasionally.