Cathy's Sloppy Joes

A few years ago, after the birth of one of my children, one of the ladies from my Church brought us dinner.  She brought us these amazing sloppy joes and I immediately fell in love with her recipe.  They are a little different than what most people are used to, but they are absolutely delicious and a piece of cake to put together.  Enjoy!
-1 lb extra lean ground beef
-1 (10 3/4 oz) can condensed chicken gumbo soup (do NOT add water)
-1 1/2 tsp brown sugar
-1 Tbs yellow mustard
-1 cup ketchup
-2 tsp chili powder
Brown beef in large skillet.  If using a fatter cut, then drain the excess grease.  If using the extra lean, there will be nothing to drain.
Add remaining ingredients, bring to a low boil and serve in hamburger buns.