Roast Beef Salad Spread 
½ cup chopped onion 
¼ cup chopped celery 
½ cup sour cream 
¼ cup mayonnaise 
2 Tbsp. lemon juice 
1 Tbsp. chopped parsley 
1 Tbsp. horseradish 
1 tsp. prepared mustard 
1 tsp. salt 
1 tsp. oregano 
¼ tsp. pepper 
1 lb. mushrooms, thinly sliced 
1 lb. cooked roast beef, cut into thin strips 
Shredded lettuce 
10 Pita pockets
Mix together all ingredients except roast beef, mushrooms and lettuce.
 Toss meat and mushrooms separately then serve in pita pockets topped
 with dressing and lettuce.