Jammin' Joe Bake

I got this recipe from my friend Christy Sharp in Indiana.

Jammin' Joe Bake

1 lb. lean ground beef
1 (8oz can) tomato sauce
¼ cup ketchup
2 tsp mustard
1 cup flour
1½ tsp baking powder
2/3 cup milk
3 Tbsp butter, melted
1 egg

DIRECTIONS:
Brown and drain ground beef. Stir tomato sauce, ketchup, and mustard into beef. Pour into 8x8 pan. Combine flour, baking powder, milk, butter and egg with fork until mixed. Pour over beef mixture, spreading evenly. Bake at 450° for 18-22 minutes or until crust is light golden.

*I end up making more of the topping because it just doesn't seem to be enough. (1.5 times. 2x is too much)