I am a normal weight. I don't eat breakfast, I never have. I just can't face food when I wake up.
On weekdays, I drink water when or soon after I wake up (e.g. on the bus to work). When I get to work (at 08:15), where I will have a small black coffee if there's time.
Typically, I eat a Granny Smith apple, or grapes (e.g. 15 grapes), or strawberries (e.g. 6 strawberries), or a small cucumber at any time between 10:45 and 11:30. Occasionally, I forget to bring it with me, or don't have time. If it's a colleague's birthday, I'll eat a piece of cake, a biscuit, or a pastry at that time. I'd say this is about once every 3 to 4 weeks?
Lunch is at 14:00 or just after. I have a small tin of tuna in springwater with salad. I get the salad from the school canteen (lunch is part of the teachers' remuneration) and bring the tuna from home. In summer, I'll have a cup of gazpacho too (when it's on that day's menu - once or twice a week). About once a fortnight, the cooked food takes my fancy and I will have that. The pumpkin soup is one of my favourites!
Sometimes I will have a snack after work (any time from 17:00 to 18:30) which might be fruit, a boiled egg, some seeds, chia seeds soaked in water if I've remembered to make them in advance.
After work, I go for a run and / or to the gym. (Usually run 4 nights a week and gym 2, sometimes 3). Not a long run - 4 or 5 km. in summer and a little longer / faster in winter.
We eat dinner at 20:30 / 20:45. Lunch is everyone in the family's main meal so we don't have big dinners in the week. Often we have omelette or homemade pizza, with salad or a green vegetable. Sometimes salmon. Chicken is also popular in the colder weather.
I don't drink anything except water (the only drinks I like are water, black coffee, some herbal teas, and, erm, booze. Very rarely have a glass of wine or a small lager in the week - only if I went out for someone's birthday or something. I'm not a big or frequent drinker).
On Saturdays, I play sport for 2 to 3 hours in the morning and then often we go out as a family for brunch or lunch. I'd have something like a coffee with poached eggs and avocado on toast, or sometimes a burger with chips or sweet potato fries. Saturday night dinner could be anything from leftovers from the week or something like frozen chicken fingers with veg.
On Sundays, we tend to have fruit for a late breakfast/brunch (something nice like melon or grapefruit) and then eggs. Dinner same as Saturday.
On the whole, I eat whatever I want. This time of year, we will take the kids for an ice-cream on our evening walks most days and at least once a week I'll feel like having one too. That said, when I go to the "British supermarket" (we live abroad), I'll refrain from buying bags of Walkers crips or a bag of Cheese Savouries as I know I'll just scoff them. But that's more for health than weight.
Hope this helps?