- 1 tablespoon white wine vinegar
- 1 tablespoon Dijon mustard
- 1/4 teaspoon dried oregano
- 1/4 teaspoon dried tarragon
- 1/8 teaspoon salt
- 1/8 teaspoon pepper
- 2 tablespoons olive oil
- 1 1/2 cups sliced fresh mushrooms
- 1/2 cup cherry tomato halves
- 8 pitted ripe olives, halved
- Lettuce Leaves
- In a small bowl, combine the first six ingredients. Gradually whisk in oil until blended. Add the mushrooms, tomatoes and olives; toss to coat. Cover and refrigerate for 2 hours. Serve in a lettuce-lined bowl.