After a fast

#1

I did a 24 hr fast yesterday. Had about 600 cal. for the meal last night. Less than 10 total carbs. I try to fast 24 hrs once per week.
Usually I stick to 18/6
Probably could have gone without eating last night but I have a very physical job and I was worried I wouldn’t have the energy.
So my question is, do I need to eat a ton the next day or can I just eat my regular calories? I usually eat around 1400 sometimes 900,sometimes 1900.
I’m asking because I’m not hungry and so I don’t eat.
I haven’t budged from my present weight for a month.
I read those that say eat to satiety and others that say you arent eating enough calories. I try to mix it up so my body doesn’t get used to what I’m doing.
I’m 56 still 20lbs over a good weight,very active. Lost 12 27% body fat