If you like mushrooms, this is wonderful!

1 8oz. can whole mushrooms, drained or fresh mushrooms, washed & steamed for 10-15 minutes in a little water & butter, drain

In a container with lid (for shaking), mix and shake the following until salt is dissolved:
2 tbs. red wine vinegar
1/2 tsp. fresh ground pepper
1 tsp. seasoning salt
1/8 tsp. garlic powder
1/8-1/4 tsp. red pepper

Add mushrooms and refrigerate overnight.