Protobello Burgers

Name: Protobello Burgers
Ingredients: 1/4 cup vegetable broth; 2 tablespoons olive oil; 2 teaspoons balsamic vinegar; 1 teaspoon chopped fresh thyme leaves; 1/4 teaspoon salt; 1/4 teaspoon coarsely ground black pepper; 4 medium (about 4 ounces each) portobello mushrooms, stems removed; 1 lemon; 1/3 cup mayonnaise; 1 small green onion, trimmed and minced; 4 large (about 4-inch) buns; 1 bunch arugula, trimmed

12 ingredients

5 steps

Ingredients

1/4 cup vegetable broth
2 tablespoons olive oil
2 teaspoons balsamic vinegar
1 teaspoon chopped fresh thyme leaves
1/4 teaspoon salt
1/4 teaspoon coarsely ground black pepper
4 medium (about 4 ounces each) portobello mushrooms, stems removed
1 lemon
1/3 cup mayonnaise
1 small green onion, trimmed and minced
4 large (about 4-inch) buns
1 bunch arugula, trimmed

Directions

1

1. In glass baking dish just large enough to hold mushrooms in a single layer, mix broth, oil, vinegar, thyme, 1/8 teaspoon salt, and 1/8 teaspoon pepper. Add mushrooms, turning to coat. Let stand, turning occasionally, 30 minutes.
2

2. Prepare grill.
3

3. Meanwhile, from lemon, grate 1/2 teaspoon peel and squeeze 1/2 teaspoon juice. In small bowl, stir lemon peel and juice, mayonnaise, green onion, and remaining 1/8 teaspoon salt and 1/8 teaspoon pepper.
4

4. Place mushrooms on hot grill rack over medium heat and grill, turning occasionally and brushing with remaining marinade, until mushrooms are browned and cooked through, 8 to 10 minutes per side.
5

5. Cut each bun horizontally in half. Spread cut sides of buns with mayonnaise mixture; top with arugula leaves. Place warm mushrooms on bottom halves of buns; replace top half of buns to serve