1 pkg. Good Seasons salad dressing mix (do not use no oil Italian)
1 c. mayonnaise
1 c. sour cream
1 (10 oz.) frozen spinach (thawed & drained)
1/2 c. chopped mushrooms
1/4 c. bacon bits

Blend first 3 ingredients. Add 2nd 3 ingredients and toss gently. Cover and chill 1 hour. Makes 3 cups.