First, mix the dressing in the bottom of the jar. The rest of the layers must be organised according to what can handle getting wet and what would go soggy. So start with crisp chopped veggies such as tomatoes, carrots and cucumber. Then add any cooked vegetables or legumes that you might want to use. After this, layer cheese or egg, if you are using them. Then layer any grains you might want such as cooked rice, quinoa or bulgar wheat. Finally, pack in some leafy greens and/or a sprinkling of nuts and seeds (these are the ingredients that really can’t get soggy!)