All-in-one food used to be the preserve of Pot Noodles, burgers and other poor quality, low nutrition food.
But now the notion of replacing your meat and two veg with wholesome, real all-in-one food is becoming more common place, mainly due to the rise of authentic food from around the world.
Burritos are a wonderful combination of meat, rice, beans and veggies, all in one complete easy to eat meal. London is awash with burrito restaurants. Shwarma, felafel and other things in pita bread are the new trendy lunch food (visit Pilpel in London).