I heat up one meal after I get home. Then a second meal towards the evening. Each 1200 calories. Allows me to smoke weed and indulge for a bit, and not gain weight. It's great because I'm a coffee addict so during the day I get to look forward to coffee every few hours, with the added benefit of not having an upset stomach or taking a shit at work frequently.
Have you considered intermittent fasting? I typically only eat 5 or 6 days out the week. Aside from the health benefits, IF lends itself to productivity; I love having days where I don't need to worry about food or cooking at all.
There are various IF approaches, and it does take some getting used to, but I've found it worth it.