01 -
Generously season beef chuck chunks with salt and freshly ground black pepper.
02 -
Place seasoned beef in the slow cooker. Top with sliced onion, minced garlic, and grated ginger.
03 -
Pour beef broth and water into the slow cooker. Add soy sauce, sesame oil, and brown sugar. Stir gently to combine all ingredients.
04 -
Cover and cook on low for 8 hours or high for 4 hours, until beef is very tender and can be easily shredded.
05 -
Approximately 10 minutes before serving, cook ramen noodles according to package instructions in boiling water. Drain well.
06 -
Stir baby spinach into the slow cooker just before serving, allowing it to wilt slightly in the hot broth.
07 -
Divide cooked noodles among serving bowls. Ladle beef and broth over the noodles.
08 -
Top each bowl with sliced green onions and, if desired, soft-boiled eggs. Drizzle with Sriracha or chili oil for added heat.