Busy Day Beef & Noodle Soup

1 1/2 lb. ground beef
1/2 c. chopped carrot
1/2 c. chopped onion
1/2 c. chopped celery
QUICK TIP:  Since I never really use celery that often, I hate to buy a bunch of celery for just 1/2 cup. 
So I just went to the salad bar at my grocery store and they have celery already chopped.
I also bought a bag of tiny baby carrots instead of a "bunch".  That way you can munch on the leftovers with Ranch dip during the week.
That way you don't have a whole bunch of carrots and a head of celery that you will never use again.
7 c. water
1 envelope Au Jus Mix
2 Tbsp. Beef Bullion Granules
2 c. uncooked wide egg noodles
Fry hamburger with onion, carrots and celery in large pot.  Drain oil.  Add water, au jus envelope and beef granules to hamburger mixture.  Bring to a boil.  Add noodles.  Return to boil,  Turn to low and simmer for 15 minutes or until noodles are tender.  Serve with Crusty Bread.