side dishes Marinated Mushrooms 2 tablespoons vinegar2 tablespoons olive oil1/2 teaspoon McCormick Basil Leaves1/2 teaspoon McCormick Marjoram Leaves1/2 teaspoon McCormick Mustard Seed1/4 teaspoon McCormick Onion Salt1/2 pound fresh mushrooms, sliced Place all ingredients except mushrooms in large bowl and stir to combine.Add mushrooms, mix well, and cover.Refrigerate at least 24 hours before serving.Makes 1 cupThis recipe created by McCormick, Inc. Back to Recipes