Korean Noodle Stir fry

Name: Korean Noodle Stir-fry
Ingredients: * 4 ounce buckwheat soba (1 bundle, broken in 1/2); * 8 ounce firm tofu,; * 1 tablespoon low sodium soy sauce mixed with 2 tablespoon water; * 1/8 teaspoon sesame oil; * 2 medium yellow squash, halved lengthwise and sliced thick; * 1/2 onion,; * 4 cup bok choy (3-4 baby bok choy), sliced thin; * 1 teaspoon garlic, minced; * 1 cup mung bean sprout; * 1 1/2 tablespoon gochujang; * 3 tablespoon water; * 1/2 teaspoon sugar or agave nectar