RE: Toning up
Can you not make shakes to take away with you for the day.
You can add whey for protein, oats for carbs, fruit, nuts for efas .... not as good as 'real' food, but is an easy way to eat on the go.
I used to have an appauling diet (one day was 2 bowls of cocopops in full fat milk, a mars bar and 20 southern comform and cokes) and still mamaned to put on lean mass. Nowhere near as quickly as I am now, but it happenned, slowly.
Raw dead Lift 320kg
Raw bench 171kg
Shirted bench 200kg
Amateur cage fighter @ 95 - 105kg