Noodles with Tofu

Name: Noodles with Tofu
Ingredients: 1/3 cup seasoned rice vinegar; 2 tablespoons low-sodium soy sauce; Kosher salt; 1 red jalapeno pepper, halved and thinly sliced 1 tablespoon vegetable oil; 1 14-ounce package firm tofu, drained, cut into 4 equal pieces and patted dry; 8 ounces sliced shiitake mushrooms (about 4 cups); Freshly ground pepper; 1 10- to 12-ounce package Chinese egg noodles; 1 bunch broccolini, trimmed and cut into 2-inch pieces; 1 tablespoon toasted sesame oil; 2 cups bean sprouts; 2 scallions, thinly sliced