| 2 | | Garlic cloves; minced |
| 1 | ts | Black peppercorn |
| 1 | tb | Fresh coriander roots |
| 1/2 | ts | Salt |
| 2 | ts | Vegetable oil |
| 1 | lb | Flank or flatiron steak trimmed |
| 3 | sm | Firm tomatoes |
| 1 | | Bermuda onion cut into 1/4-in slices |
| 1 | | Sheet heavy-duty alum. foil (8" x 18") |
| 1 | | Head red-leaf lettuce |
| | DRESSING |
| 1 | ts | Ground Dried Shrimp w/Chiles (optional) |
| 2 | | Garlic cloves; chopped |
| 2 | | Red serrano chiles; sliced |
| 2 | | Green serrano chiles; sliced |
| 1 | tb | Roasted chile sauce (nam prik pao) |
| 3 | tb | Fish sauce (nam pla) |
| 5 | tb | Lime juice |
| 2 | ts | Sugar |
| 1/4 | c | Coarsely chopped fresh mint |
| 1/4 | c | Fresh coriander leaves (coarsely chopped) |