Step 1Combine tomatoes, onion, cilantro, pepper, lime juice and salt in a bowl. Cover and chill 2 hours.
Step 1Place seeds on baking sheet in single layer and toast at 350 degrees until golden brown, 6 to 7 minutes. Mix with cumin and chili powder while seeds are warm until seeds are well coated.
Step 1Combine anchovies, Dijon and dry mustards, garlic, Worcestershire sauce, vinegar, pepper, lemon juice and hot pepper sauce in a blender. Begin to blend and gradually add oil in a thin stream until mixture becomes mayonnaise-like in consistency. Adjust seasoning. (Makes 1 cup).
Step 1Brush lettuce halves with some of Caesar Dressing. Place face down on heated grill or broiler rack and grill or broil 4 inches from heat source, about 90 seconds, or until golden and slightly wilted.
Step 2Remove from grill or broiler and arrange lettuces face-up on 8 plates. Place more dressing in center of plate, followed by dollops of Pico de Gallo. Sprinkle with Pumpkin Seeds.