Quinoa Fava Bean and Chard Veggie Burgers

Name: Quinoa, Fava Bean, and Chard Veggie Burgers
Ingredients: 1 cup cooked quinoa; 2 cups fresh or frozen fava beans (see note); 4 ounces chard, center ribs removed; 1 onion, diced; 2 garlic cloves, minced; 1 tablespoon chopped fresh dill (or 1 teaspoon dried); 2 large eggs, lightly beaten; 1/2 cup dry breadcrumbs; 1/2 teaspoon fine sea salt; 1/4 teaspoon freshly ground black pepper; 3 tablespoons olive oil, divided; 6 ounces Halloumi cheese, cut into 6 slices; 6 tablespoons olive tapenade (purchased is fine); 6 whole grain rolls; 6 handfuls mixed greens, such as frisee and pea shoots