Cold proteins would work as well, but I do like a warm meal once a day.
My issue lies in the proteins, all good and well to reheat a stew, soup, or something tomato and minced meat based (think bolognese) in the microwave, but anything like pork belly strips, crunchy fried bacon, pan fried fish, meatballs etc are out if you have to rely on a microwave. And so are fried eggs, warm boiled eggs, halloumi and the likes, those things need to be cooked on the spot, not microwaved.
A plate of veggies and a protein seems difficult to me, so I'm really looking into tasty hot meals without eating soups and stews all the time.