Cut bell pepper in half; remove seeds. Place halves, skin sides up, on foil-lined broiler pan. Broil 3 to 4 inches from heat about 5 minutes or until skin blackens. Place in plastic bag; let stand 10 minutes to steam. Peel skin from pepper.
Meanwhile, line microwavable plate with microwavable paper towels. Spread diced pepperoni on plate; cover loosely with microwavable paper towel. Microwave on High 2 minutes to remove excess fat.
Cut roasted pepper into thin bite-size pieces.
In small bowl, beat oil, vinegar and garlic salt with wire whisk until well blended. In large bowl, toss lettuce, roasted pepper, pepperoni, tomatoes and chick peas with oil-and-vinegar dressing.