Poke bowls: rice seasoned with rice vinegar and soja sauce, cucumber, a fruit, chicken or smoked salmon cut in stripes, season with soja sauce or mayonnaise. One can get fancy with avocado, exotic fruits, tuna, whatever. Everything goes.
Cutting half a cucumber and a fruit is easy, slicing a package of salmon too, and one can consume chicken or meat leftovers. One can do all that meanwhile the white rice boils. Bonus points if you have a rice cooker.
Yes, soy sauce. Typo :)