5 cups (1/4-inch-thick) sliced red potato (about 2 1/4 pounds) |
1/2 cup sliced green onions |
1/4 cup chopped fresh parsley |
3 tablespoons lemon juice |
2 tablespoons capers |
2 tablespoons extra-virgin olive oil |
1 tablespoon balsamic vinegar |
1/2 teaspoon dried basil |
1/2 teaspoon dried oregano |
1/2 teaspoon dried tarragon |
1/4 teaspoon black pepper |
8 garlic cloves, minced |
2 portobello mushroom caps, thinly sliced |