I mean the one you do when you want something easy to do, but not when you're tired at the point you microwave a frozen-meal, or just cut down a piece of cheese and put it in a bread
Boil water amount on the box in the electric kettle. Drain canned chicken. (Some brands need to be rinsed because of the amount of salt in the broth they're canned in.) Add stuffing, butter (amount according to the box) and chicken into a bowl. Stir to incorporate. Add boiling water, stir again, and cover for 5 minutes. Fluff and serve.
I suggest using the low sodium version as there will be a lot of salt between the box of stuffing and canned chicken. Can also use leftover cooked chicken.