Cut the romaine heart in half lengthwise. Trim the stem end a little, if you wish, but be sure not to cut too much–all the leaves need to stay attached.
Heat your George Foreman grill or a stove-top grill pan. Spray it lightly with olive oil, if necessary. (You know your grill–if you think it might stick, give it a quick spray.) Once it’s hot, put one romaine half on it, two if they will fit. Close the top of the Foreman grill or press the lettuce down lightly with a spatula if you are using a grill pan. Cook for about 2 or 3 minutes, until lettuce has begun to wilt and grill marks to appear; then, if you’re using a grill pan, turn over and grill for another 2 minutes.
Place on two plates, cut side up, and sprinkle each with 1/2 teaspoon vinegar, 1/2 teaspoon sunflower seeds, and freshly ground black pepper to taste. Serve while still warm.
One or two servings count as zero points on Weight Watchers Freestyle.