Add 2 cups of water to a small pot over high heat. Add the seasoning packet from the instant ramen, along with the ginger, chili paste, mushrooms and garlic. Bring to a boil.
Add the ramen noodles, green beans and chicken and cook until the noodles are softened and the chicken is heated through, about 3 minutes. Remove from the heat and stir in the spinach and butter. Stir until the butter has melted and the spinach has wilted, about 30 seconds. Transfer to a large bowl.
Garnish the edge of the bowl with the hoisin sauce, bean sprouts and carrots. Drizzle over the sesame oil and enjoy.