Macaroni Salad

I got this from a friend of mine many years ago.  It is one of my favorites.

Ingredients:
12 oz. small shell macaroni (cooked and drained)
1 cup chopped celery
1 green pepper (chopped)
2 green onions (sliced thin)
1 medium tomato (cut up)
1/2 cup cheese (grated)
1 can tuna (drained)

 Combine in a large bowl

Dressing:
1 cup mayonnaise
1/4 cup Italian dressing
1 tsp mustard

Mix dressing together and add to salad.  Mix well.