Fighting Temptation?

High fiber foods
Protein is the most satiating/ filling
High volume/ low cal(non starchy veg)
Stay hydrated
Not too strict of a deficit
Willpower

Fighting off temptation isn't something you do and are done with, it's an every day challenge that goes on for the rest of your life. All you can do, is find personal strategies to make it easier. I'm in maintenance, I have had a stable healthy weight for 3.5 years, but I do practically the same as during weightloss. Just so you're aware of the terms - a calorie deficit means eating less than you burn, which is what leads to weightloss; to maintain a lower weigth, you'll be eating fewer calories than what you maintain on at a higher weight, and that's calorie balance for that weight. I do this:

Eat at regular intervals. 3 meals per day is the framework I prefer now. I aim to eat 3-4 hours apart, but I'm flexible.

I plan balanced, varied meals I really look forward to, while I plan and schedule grocery shopping.

This leads to: I treat my shopping trip like a job, and a game - the shop owner's job is to make me spend as much money as possible, my job is to spend as little money as possible, and get everything I want and need, and nothing I don't want or need. When I have reached that goal, done my job properly, I pat myself on the back (literally; I really did, but I have stopped now, it's become habit).

This leads to: I don't stock up on too tempting foods. Most of my food is in the form of simple, versatile single food ingredients, that are easy to combine into simple, but delicious meals. But it's still an effort. I want my meals to take an effort; I want to be so hungry that I'm bothered to make an effort to get something to eat. If it's too easy to eat, I'll eat too much.

This leads to: I will eat anything, and overeat, on special occasions. Most days I stick to a modest diet, so the occasional splurge has no impact in the long run, and the long run it the only thing that counts.

I weigh myself daily. This removes the scale anxiety, it keeps my goals immediate and behavior oriented (all the small decisions I make every day, add up, no single decision can make or break the end result), I don't postpone "being good" to the days before "weigh-in day", which would lead to panic and distorted eating. I have become the person who eats an orange today, and a candy bar tomorrow (I used to be the opposite).

I don't do any planned exercise, but I'm more active naturally. Walk, dance, play. Staying active is good for health, makes me happy, and beats boredom, and I'm only tempted to eat when I'm bored or sad.