Heat oven to 350°F. In small bowl, mix ham, celery, bell pepper, onion, mayonnaise and red pepper sauce. Spread evenly on toasted bread; place on ungreased cookie sheet.
Bake 5 minutes. Slice cheese into triangles. Place 2 cheese triangles on each slice of bread; bake 5 minutes longer. Wrap securely with foil; take with you for an on-the-go dinner.