Boil 6 quarts of water. Gradually add shells so water remains boiling. Boil ... stirring occasionally. Brown hamburg, drain. Add onions, celery, ... the top of stuffed shells. Cover pan and bake at 375 degrees for 30 minutes.
Heat a large skillet or ... fill each cooked shell with the cheese mixture and ... remaining sauce. Arrange stuffed shells on tomato sauce. Bake 25 ... 4 to 6 servings.
Cook noodles as directed, meanwhile brown hamburger and onion. Drain grease and ... evenly over the shells. Cover and cook 350 to 375 degrees for 45 minutes.