1. Cut bell peppers in half lengthwise; discard seeds and membranes. Place peppers, skin sides up, on a foil-lined baking sheet; flatten with hand. Broil 10 minutes or until blackened. Place bell peppers in a zip-top heavy-duty plastic bag, and seal; let stand 15 minutes. Peel peppers.
2. Place bell peppers and remaining ingredients in a food processor; process until smooth.