Lol you are on pointHow exactly do you have his enclosure set up? I have never seen one like yours. I do not see a linear UVB but also uvb will not penetrate glass.
Per the food the feeders are given... Avoid Spinach it binds calcium... I would not do oatmeal... It is just filler and be careful having grains like that stay moist. You can end up with other issues.
Go with the veg on this image and this type of ratio. You can still buy organic produce. You want the bulk of it to be green veg and only a small fraction to be fruit.
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