Cook the Noodles

1. Cook the Noodles: Bring a large pot of salted water to a boil. Cook the noodles according to package directions, then drain and set aside.
2. Sauté the Noodles: Heat 1 tablespoon of sesame oil in a large skillet or wok over medium-high heat. Add the cooked noodles and stir-fry them for about 2-3 minutes until they get a bit crispy around the edges. Remove from the pan and set aside.

Prepare the Ground Beef

1. Cook the Beef: In the same skillet, heat the olive oil over medium-high heat. Add the ground beef and cook, breaking it up with a spoon, until browned and cooked through, about 5-7 minutes.
2. Add Garlic and Ginger: Add the minced garlic and grated ginger to the beef, stirring constantly for about 1 minute, until fragrant.

Make the Sauce

1. Prepare the Sauce: In a small bowl, whisk together the soy sauce, brown sugar, rice vinegar, hoisin sauce (if using), and sriracha sauce (if using).
2. Combine: Pour the sauce over the cooked beef and stir to coat the meat evenly. Let it simmer for 2-3 minutes, allowing the flavors to meld together.

Combine Everything

1. Add the Noodles: Return the cooked noodles to the pan with the beef and sauce. Toss everything together until the noodles are coated in the flavorful sauce and heated through.
2. Garnish: Top the dish with chopped green onions for a fresh, crunchy contrast.