In a large mixing bowl cover noodles with boiling water. Let stand for 10 minutes, separating the noodles occasionally with a fork; drain. Rinse with cold water and drain again. If using chicken strips, halve them crosswise.
Return noodles to bowl; stir in chicken, cheddar or American cheese, sweet pepper strips, and pepperoni. Add dressing and black pepper; toss gently to coat. Cover and chill for 2 to 24 hours. Before serving, add endive and tomatoes; toss gently to mix.
Prepare salad. Cover and chill for 2 to 24 hours. Before serving, add endive and tomatoes.