I've been big into green/grain/legume bowls lately.
I make big batches on the weekend of lentils, pinto or black beans, or chickpeas. Freeze in 1/2 cup containers. Also make big batches of short grain brown rice and freeze in 1/2 cup containers.
For lunch I pull out a rice container and and lentil or bean container, then add spinach or chopped kale and any other veggies I have on hand. That all goes to work with me and gets warmed up in the microwave, then I add some combination of chopped cucumbers, hummus, tzaziki or raita, and a dressing of olive oil, lemon juice, and red wine vinegar.
It takes a little prep work on the weekend, but 5 minutes to throw everything into a lunch bag in the morning and 2 minutes to microwave at work.