Food for my leopard

[KimC90]

Hi y'all ive got a 2-3 year old leopard. I just got him from a friend just a few weeks ago and he wasnt being cared for properly. He only got these little mini ball hard food things to eat. :-( no lamp, no supplaments, and a very small terrarium. Poor baby.

Well now Dwight is going to get the good stuff. Right now he gets a hand full of spring mix in the mornings and has a never ending supply of alfalfa hay.
So a few questions:

1. I live in an apartment but i want to grow fresh food for him on my balcony so I can cut it and bring it to him. What would be good to grow?

2. I got him the alfalfa hay about 5 days ago now and I havnt seen him eat a bite, he has moved it to the other side of the tank to hide under. Any input?

3. Am I feeding him enough?

4. What other things from the grocery store would he like besides spring mix?

5. What are some good occasional treats for him?

Thanks in advance!