Ingredients

1/2 c. red-wine vinegar

c. olive oil

Coarse salt and ground pepper

2 lb. fresh shiitake mushrooms

1 1/2 c. quinoa

1 lb. baby spinach

8 oz. feta cheese

Preparation

Step 1Heat broiler; set rack 4 inches from heat. In a small bowl, whisk together vinegar, oil, 1 teaspoon salt, and 1/4 teaspoon pepper.Step 2On a large rimmed broiler-proof baking sheet, toss mushrooms with half the dressing (reserve the rest); broil, tossing occasionally, until most of the liquid has evaporated and mushrooms are tender, 20 to 25 minutes.Step 3Meanwhile, in a small saucepan, combine quinoa, 3 cups water, and 1 1/2 teaspoons salt. Bring to a boil; reduce heat to medium. Cover, and simmer until liquid has been absorbed, 15 to 20 minutes.Step 4Place spinach in a large bowl; add hot mushrooms, quinoa, and reserved dressing. Toss to combine (spinach will wilt slightly). Top with crumbled feta, and serve immediately.