In a 9 x 13 inch buttered or greased glass baking dish, put 8 pieces bread. Add pieces to cover dish completely; cover bread with ham slices, then layer with cheddar cheese. Cover with more bread (to make sandwich). In bowl, beat eggs, salt and pepper; add dry mustard, onion, green pepper. Worcestershire sauce, milk and Tabasco. Pour over sandwich. Cover and let stand in refrigerator overnight.
In the morning, melt 1/4 pound butter. Pour over top and cover with crumbs of cereal. Bake, uncovered, for 1 to 1 1/4 hours at 350 degrees. Let stand for 10 minutes before serving. Serves 8.