|>>|| No. 10593
Could you just not use spread? Throw a bit of tomato in your sandwich if you want some moisture.
Otherwise, a tablespoon of mayo, or Heinz sandwich spread, or salad cream, they're all only about as calorific as a single boiled egg. Just don't slather your sarnie in the stuff and you'll be fine. But basically any 'creamy' spread is not going to be great. There are plenty of low fat versions but they usually don't taste of anything so you end up using more, and you're no better off.
Branston Pickle is only 15 calories per tablespoon, and things like marmite and bovril are even lower.