Essential Tofu Burgers

Name: Essential Tofu Burgers
Ingredients: one 14- or 15-ounce block firm tofu, optionally frozen and then thawed; Neutral oil, such as grapeseed, safflower, or canola; 4 cups sturdy but soft greens, such as watercress, spinach, chard, arugula, tatsoi, or baby kale; 4 scallions, green and white parts, thinly sliced; 1 tablespoon minced garlic; 1 tablespoon minced ginger; Pinch red pepper flakes; 1 tablespoon soy sauce; 1/4 cup coarsely chopped, toasted peanuts, cashews, walnuts, almonds, or sunflower seeds; 2 teaspoons cornstarch, whisked together with 1 tablespoon water; 1/2 teaspoon salt; Freshly ground black pepper; 1/4 cup coarse breadcrumbs or panko (optional); Toasted buns, for serving