In a small bowl, combine gochujang, apple cider vinegar, soy sauce, sugar and sesame oil. Set aside.
Namul
Bring a large pot of salted water to a boil.Boil bean sprouts for about 2 minutes. Remove with a strainer, drain well, and set aside. In the same pot, boil shredded carrots for 2 minutes. Drain and set aside. Boil spinach for about 1 minute. Drain, let cool slightly, then squeeze out excess water.
Season each vegetable separately with ½ tbsp sesame oil, 1 tsp soy sauce, 1 tsp sesame seeds, and salt. Mix well and set aside.
Marinated Beef
In a bowl, combine beef with minced garlic, soy sauce, mirin and sugar. Marinate for at least 1 hour or up to 24 hours.
Heat a skillet over medium heat. Add oil if needed, then sear the beef until browned. Set aside.
Fried Eggs
Heat skillet over medium heat, add some oil and fry eggs to your liking.
Assembly
Divide rice into bowls (about 1 cup per serving). Arrange vegetables and beef over the rice, then place a fried egg in the center.
Drizzle with bibimpap sauce and sprinkle with additional sesame seeds before serving.