1 (3 oz.) pkg. cream cheese
1/4 c. prepared yellow mustard
1 (7 oz.) can tuna, drained well
1/4 c. celery
1/4 c. chopped peanuts
Tomato slices
Lettuce
6 hamburger buns

Beat together softened cream cheese and mustard until smooth; stir in tuna, celery and peanuts. Put mixture on bun with slice of tomato and lettuce.