In a large skillet, add the beef, onions and carrots. Cook until the veggies have softened and the meat is browned all over, 6 to 8 minutes.
Add the garlic and red bell pepper and cook another minute. Drain the fat if needed.
Add the chile paste, soy sauce, mirin, tomato paste, corn syrup and a pinch of salt and pepper. Let it simmer for 5 to 10 minutes.
Taste it and adjust the heat with more chile paste if desired.
Finally, stir in the scallions.
Serve a heaping mound of Joe on toasted hamburger buns.
