Even easier-fajitas : onions and bell peppers cut about even and cooked for a bit in a bit of oil ( even a splash of water works) with a packet of fajita spice mix from the store. Cook a little longer for less crunch). Rotisserie chicken for the meat. Tortillas and cheese slices with rice if you want- boil in a bag is a-ok.

Or try frozen veg + golden brand Japanese curry. Same chicken and rice as above.

Stir fry is easy, but tricky to master the different cooking times. (These dudes might be selling themselves short, but who knows)