A former Gunners junior, Eze made his name first with QPR before earning a Premier League move to Palace four years ago.
After completing his return on Saturday, Eze revealed to arsenal.com: "I thought about coming back from the moment I understood other clubs and what it meant to become a pro. I've always thought: ‘Arsenal is where it's at, that's what I want to achieve, what I want to get to.’
“I've been on trial for four years, if I'm being honest. Every time I came to Arsenal, I looked at the seat that I used to sit on when I used to come to games with my brothers, and I've said every single time: ‘this is it - it's time, this is an opportunity.’ I'm not going to say I knew it was going to happen, but that's the feeling.
“As a player, I have a level of belief in myself. I've been playing how I've been playing, I've been developing this and that, and I had the heart that if it’s meant to be, it will happen, and I believe it will. But if it doesn't, I'm at peace because I know I'm giving everything. So for it to happen now and to be in this position, there is a bit more energy inside the tank.