Prep your veggies and aromatics: Thinly slice the onion, mince the garlic, and grate or mince the ginger. Slice mushrooms and bell pepper, shred carrots, and rinse your greens. Keep toppings like scallions and lime set aside.
Sauté the aromatics: In a large pot over medium heat, warm the oil.
Add onion and a pinch of salt. Cook 3–4 minutes until slightly softened. Stir in garlic and ginger and cook 30–60 seconds until fragrant.
Build the base: Add mushrooms and bell pepper.
Cook 3–4 minutes, stirring, until the mushrooms give off a little moisture.
Add broth and season: Pour in the vegetable broth. Stir in soy sauce or tamari, rice vinegar, and a small splash of sesame oil. If using heat, add chili-garlic sauce or red pepper flakes.
Bring to a gentle boil.
Simmer for flavor: Reduce heat to a steady simmer and cook 5–7 minutes to let the flavors meld. Taste and adjust seasoning—more soy for salt, more vinegar for brightness, or a squeeze of lime for lift.
Cook the noodles: Add ramen noodles to the pot. Use tongs to gently separate them.
Cook according to package directions (usually 2–4 minutes) until just tender. Don’t overcook.
Add quick-cook veggies: In the last minute, stir in shredded carrots, spinach or kale, and corn or peas if using. They should soften but stay bright.
Finish and serve: Turn off the heat.
Add another tiny drizzle of sesame oil for aroma. Ladle into bowls and top with scallions, sesame seeds, nori, soft-boiled egg or tofu, and a squeeze of lime. Add chili oil if you like heat.