Part of eating well is looking at what you're eating right now and making the required adjustments to turn it into something good. While this can initially sound like deprivation, it helps you to sustain a similar pattern of eating but increases what it offers you in terms of nutrition. It's just as much of a change of mind as anything else.
For instance, if you're used to getting a burger for lunch, switching to a tuna or chicken sandwich on granary bread could be a good idea. The idea remains the same – meat, bread, seasoning – and in contrast, if it is a little tasteless, there's a lot you can do with pepper, paprika or a variety of other light spices.