Veggie Burgers Recipe
Ingredients 2 portobello mushrooms (8 ounces), stems removed, cut into 1/2-inch pieces 1 small zucchini 1/4 cup extra-virgin olive oil, plus more for brushing 1/4 cup minced shallot (1 large shallot) 1/4 teaspoon red-pepper flakes 1/4 cup finely grated Parmesan cheese 3/4 cup quinoa, cooked according to package directions (2 cups cooked) 2 teaspoons coarse salt Freshly ground pepper 1 large egg, lightly beaten 1 1/2 cups fresh whole-wheat breadcrumbs...