Many nights we aren't eating dinner until 8:00 or 9:00 at night. Not really ideal, since you really don't want to sleep with a full stomach. You should have at least three hours active digestion so your body can focus on resetting itself while you sleep. That means we wouldn't be getting to bed until after midnight on weeknights... which is actually closer to average than we would like it.
I'm not a morning person (which that midnight bedtime probably doesn't help), so I go into work later than most and then leave later as well. Most of my recipes take about an hour from start to finish. That combination is the reason we are eating so late. So in an effort to get dinner on the table quicker, it means planning ahead even more than weekly meal plans... it means doing some of the prep on Sunday.
I've seen those pins on Pinterest about buying rotisserie chickens from the grocery store and using them throughout the week. It's a great idea, but who knows how long that chicken has been sitting there and what they used to roast it.
I'm fortunate that the Kroger down the street from me carries local, antibiotic free chicken. For $8-10 I can get a full chicken, roast it myself, and have about eight servings of chicken to use throughout the week. There is very little prep involved in roasting a chicken, you just need to be home to take it out of the oven, really. And then you can make chicken stock afterward to use as a base for a soup in your meal plan. Now that is using the while bird!
There are probably hundred of ways to use this chicken, but we made tacos and sandwiches. I a small mixing bowl, we mixed the chicken with some chipotle salsa and chipotle chili powder and heated it up for our tacos. Then we made some pulled chicken sandwiches by heating of up the chicken and mixing in some barbecue sauce (which allowed mine to be sweet BBQ and his to be spicy BBQ). And then some buffalo chicken wraps. Each meal took less than ten minutes to get to the table!