In a large pot, heat the sesame oil over medium heat. Add the minced garlic and grated ginger, sautéing for about 1-2 minutes until fragrant.
Pour in the vegetable broth and bring to a simmer.
In a small bowl, whisk the miso paste with a little hot broth to loosen it, then stir it back into the pot along with the soy sauce. Let it simmer for 5-7 minutes to combine flavors.
Add the sliced shiitake mushrooms, carrots, and red bell pepper to the pot. Simmer for another 5 minutes until the vegetables are tender.
Meanwhile, cook the ramen noodles according to package instructions. Drain and set aside.
Once the broth is ready and vegetables are tender, stir in the baby spinach until just wilted.
To serve, place a serving of ramen noodles in a bowl, ladle the hot miso ginger broth and vegetables over the noodles.
Garnish with chopped green onions and sprinkle sesame seeds on top for extra flavor and crunch.
Notes
Feel free to customize the vegetables based on your preference.