Start by slicing the red onion, red bell pepper, and dicing the broccoli. You’ll want everything ready to go, as this dish cooks quickly.
In a large skillet or wok, heat 2 tablespoons of the toasted sesame oil over medium-high heat. Once hot, add the sliced red onion, stirring frequently until softened, about 3-4 minutes.
Stir in the garlic paste and ginger paste, cooking for an additional 1-2 minutes until fragrant.
Add the ground beef to the skillet, breaking it up with your spatula. Cook until browned and cooked through, about 5-7 minutes. Drain any excess fat if necessary.
Add the red bell pepper, diced broccoli, and matchstick carrots to the skillet. Stir-fry the vegetables with the beef for about 3-4 minutes, until they begin to soften but still retain some crunch.
In a small bowl, mix together the cornstarch, soy sauce, chicken broth, brown sugar, rice vinegar, hoisin sauce, oyster sauce, and Sriracha (if using). Stir until well combined.
Pour the sauce over the beef and vegetables in the skillet, stirring well to coat. Let it simmer for another 2-3 minutes until the sauce thickens slightly.
While the sauce is simmering, prepare the instant ramen noodles according to package instructions. Drain and set aside.
Add the cooked ramen noodles to the skillet, tossing gently to combine all the ingredients. Drizzle the remaining 2 tablespoons of toasted sesame oil over the top and sprinkle with ground white pepper.
Spoon the Ground Beef Ramen into bowls and garnish with your choice of green onions, sesame seeds, or fresh cilantro. Enjoy your delicious creation!