Dice and simmer squash in about 1/2 cup water until soft. In a large skillit, fry beef and sausage until done. Drain excess fat. Mix squash (including water) with meat. Let cool for at least 5 minutes. Add all remaining ingredients except for 1/4 cups cheese. Mix well. Turn into a 1 1/2 quart cassarole. Top with reserved cheee and bake at 350F for 30 minutes.
