Eating 3 meals a day is a relatively new social construct for most of mans more modern history we tended to have one large meal a day.
I don’t eat Breakfast or Lunch and just drink water throughout the day and then a larger fully home cooked main meal, if I am riding I will eat some porridge or something in the morning and carb load late the night before (and eat gels, jelly babies during the ride).
People at work have questioned my lack of meals but when you point out that the 2k/2.5k kcal recommended daily intake is for an active lifestyle and we work in an office sitting down all day and drive to work etc we are over consuming at that level, at my work the level of obesity is terrifying (more so with the women who don’t tend to have sporty hobbies as a rule)
Like wise when I used to body build I used to eat 4k calories a day and had 7% body fat.
Eat what you need to fuel your body/exercise regiem and maintain a constant healthy bodyweight