Cook the ramen noodles according to package instructions. Drain and set aside.
In a large skillet, heat the sesame oil over medium heat. Add the minced garlic and grated ginger, sautéing for about 30 seconds until fragrant.
Stir in the vegetable broth, peanut butter, soy sauce, sriracha, and honey or maple syrup. Whisk together until the sauce is smooth and well combined.
Add the sliced red bell pepper to the skillet and cook for 2-3 minutes until slightly softened.
Toss in the cooked ramen noodles and baby spinach, mixing gently to coat the noodles with the sauce. Cook for an additional 2-3 minutes until the spinach has wilted.
Remove from heat and serve hot, garnished with chopped green onion, crushed peanuts, fresh cilantro (if using), and lime wedges on the side for squeezing over the noodles.