1     pound         lump crabmeat
                    = (or two 6-oz cans crab meat, drained)
1/3   cup           fat-free mayonnaise
1/4   cup           water-packed roasted red peppers
2     teaspoons     Dijon mustard
1/4   teaspoon      table salt
1/4   teaspoon      freshly-ground black pepper
4     slices        pumpernickel bread
3     ounces        low-fat Swiss cheese
                    = (four 3/4-oz slices)