Hi bagel, welcome
Re: lunches- are you at home at lunchtime, or do you need portable options, or lunch ‘on the go’ type things?
At home I tend to have a shake (about 200 calories) which I make with almond milk, peanut butter/avocado (about 100 cals worth), handful of spinach, maca powder and frozen berries. Or I’ll have salad. Or sometimes just ham, cheese, olives as a little platter.
If I was going to be taking to work, I’d probably take mostly salad, with about 150 cals of fat/protein (so avocado, cheese, ham, tuna, halloumi, cooked meat) on it. I always buy a nice salad dressing, there’s some nice ones which are reasonably low carb and really boost a salad.
Or portion up leftovers if you have access to a microwave at work?
This would then leave you 600 cals for any milk in tea/coffee, your pm meal, and probably a little something in the evening as well.