Boil 8 ounces linguine noodles al dente according to the package instructions. Drain the noodles and set aside.
In a large skillet, add 1 pound lean ground beef over medium-high heat. Cook and crumble the meat for 5-7 minutes, or until no longer pink. Stir in 3 cloves minced garlic and cook for 1 minute.
In a small bowl, whisk together ½ cup packed brown sugar, ½ cup soy sauce, 1 tablespoon sesame oil, ½ teaspoon ground ginger, ½ teaspoon crushed red pepper flakes, ½ teaspoon black pepper, and 2 tablespoons cornstarch. Pour the sauce mixture over the ground beef and simmer for 1-2 minutes.
Add the cooked noodles to the meat mixture and toss to combine. Garnish with sliced green onions and sesame seeds.
Notes
Leftover Instructions
In the Refrigerator: These Korean beef noodles will stay good in your fridge for about 3-4 days in an airtight container.
To Reheat: Pop leftovers in the microwave for a minute or two. Another great way is to reheat them in a pan on the stove. Just warm them over medium heat, stirring occasionally.