2 tablespoons olive oil
2 tablespoons rice wine vinegar
2 teaspoons minced garlic
2 teaspoons minced fresh ginger root
2 (6 ounce) filet mignon steaks
2 thin pineapple slices
3 tablespoons mayonnaise
2 tablespoons lowfat plain yogurt
2 tablespoons freshly squeezed orange juice
1/2 teaspoon ground coriander
1/2 teaspoon curry powder
4 thick slices (3/4 inch thick) sourdough bread
1 cup iceberg lettuce, shredded