I love to cook from scratch when I have time, but many days (especially week nights) I am in a time crunch and rely on quick dinners. I agree with your assessment of rotisserie chickens from the grocery store -- they are delicious and in fact my son's favorite meal. I usually serve them with mashed potatoes made from scratch and fresh veggies, so at least I feel I have cooked a portion of the meal. I will often make a double batch of mashed potatoes on the weekend, so I have mashed potatoes ready-made during the week. I just add a little cream and butter and reheat them, so it is really a quick dinner. But I digress. Sorry!
Something else my family finds perfectly wonderful is Stouffer's frozen lasagna. I'm sure true Italians would disagree, but for me the Stouffer's lasagnas are far better than anything I could make myself, so-so much easier, and not really any more expensive once I have purchased all the ingredients to make a lasagna from scratch. I like to get the huge party-size lasagnas because they are less expensive per serving, plus there are plenty of leftovers for my husband's lunch or quick dinners for the kids when they get home from evening activities.
I never make fried chicken -- just too much mess and not healthy -- but for a treat we sometimes buy it from Albertson's grocery store. We usually get this when we go visit my father-in-law. He loves Albertson's chicken. He is a true old-school Southerner so he knows good fried chicken. I'm not the best judge of fried chicken, but will take his word that Albertson's chicken is as good as homemade.