Prepare grill for direct cooking. Prick eggplants in several places with fork. Place eggplants on grid. Grill, covered, over medium-high heat 30 to 40 minutes or until skin is black and blistered and pulp is soft, turning often. Peel eggplants when cool enough to handle. Let cool to room temperature.

Place eggplant pulp in food processor with lemon juice, tahini, garlic, pepper sauce and salt; process until smooth. Refrigerate at least 1 hour before serving to allow flavors to blend. Sprinkle top with paprika and parsley and red pepper slices; serve with pita bread.