well for the kids there’s usually a Totino’s pizza , fish filets or  chicken strips, but I prefer food that doesn’t taste like cardboard, so if I really don’t want to “cook” I’ll do  some kind of chunky soup or just cereal and milk.  Hubby’s go to if I don’t feel like “cooking” is Lipton noodle soup or eggs, hash and toast. 
 
 It’s simpler to just cook the darn simple stuff than to wait for the oven to heat, and deal with larger size pans that are involved with oven cooking.