Step 1

Combine all the ingredients for the dipping sauce. Refrigerate if made in advance; set aside if using right away.

Step 2

Heat oil in a large skillet over medium-high heat. Add the onion, reduce heat to medium and cook 3-4 minutes. Add the red bell pepper and cook another 2-3 minutes.

Step 3

Add ground beef. Cook 5-6 minutes, breaking the beef up with a large spoon as the beef browns. When beef is no longer pink, drain off any excess grease.

Step 4

Return the skillet to the heat and add the garlic, ginger, broth, ketchup, soy sauce, rice vinegar and chili garlic sauce. Bring to a boil, reduce heat to medium-low and simmer for 8-10 minutes or until sauce is reduced and thickened. Taste for seasoning.

Step 5

Spoon beef into lettuce cups, top with rice, carrots and scallions. Serve a small bowl of the dipping sauce for each diner on the side.