Sloppy Joe Pie

1 1/4 lb ground beef
1/4 pkg Sloppy Joe mix
1/2 C celery, chopped
1/2 large onion, chopped
1/2 large bell pepper, chopped
salt to taste
1/2 C grated cheese
1 pkg crescent rolls
1-8 oz can tomato sauce

Cook onion, pepper, and celery in a small amount of oil. Add ground beef after vegetables are done. Cook until beef is browned. Line oiled ("Pammed") casserole dish with 1/2 package crescent rolls. Pour in meat-vegetable mixture. Add can of tomato sauce on top; sprinkle with cheese. Top with other half of crescent rolls. Bake at 375 degrees for 40 to 45 minutes.