Step 1: Cook the Noodles - Bring a pot of water to a rolling boil. Add your noodles and cook according to package instructions. Once they are perfectly al dente, drain and set aside.

Step 2: Brown the Beef - In a large skillet over medium heat, add the ground beef. Sizzle until browned and starts to crisp.

Step 3: Add Onion and Garlic - Stir in the chopped onion and minced garlic, cooking until the onion becomes translucent.

Step 4: Toss in Bell Peppers - Add sliced bell peppers and cook for an additional 2-3 minutes until they are tender yet crunchy.

Step 5: Mix the Sauce - In a small bowl, mix together the soy sauce, hoisin sauce, and sesame oil.

Step 6: Combine the Sauce and Beef - Pour the sauce over the beef mixture, stirring until evenly coated.

Step 7: Toss in the Noodles - Add the cooked noodles to the skillet and toss everything together.

Step 8: Season to Taste - Taste and adjust seasoning with salt and pepper.

Step 9: Serve and Garnish - Serve hot, garnished with fresh chopped green onions.