The Martha Stewart Show, January 2011
-
Yield
Makes 4
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Ingredients
- 2 large garlic cloves, minced
- 2 tablespoons chopped fresh thyme
- 1 cup canned cannellini beans, drained and rinsed
- 2 tablespoons plus 2 teaspoons extra-virgin olive oil
- Freshly ground pepper
- 8 large portobello mushroom caps (about 1 pound), cleaned
- 1 tablespoon plus 1 teaspoon balsamic vinegar
- 2 large red onions (about 1 pound), sliced 1/4 inch thick
- 4 whole-grain hamburger buns
- 4 thin slices cheddar cheese (2 ounces)
- 1/2 small bunch arugula (about 2 1/2 ounces), washed and dried
