Mexican Roll-Ups

In a medium skillet cook ground beef over medium-high heat until browned, using a wooden spoon to break up meat as it cooks. Drain off fat. Stir tomato, sweet pepper, vinegar, cumin, and oil into meat in skillet.

Place a romaine leaf on each tortilla. Spoon half of the cooked ground beef mixture on top of each lettuce leaf.

Completely roll up each filled tortilla (see Tip). If desired, secure roll-ups with skewers.