I think the Instant Pot egg-bites are patterned after the SBUX ones. I've never had SBUX (I hate coffee). So I meant this tray, which is also sold as a baby food freezer tray:
https://smile.amazon.com/gp/product/B078GQFFN5
They're kinda tiny. A muffin tin is probably bigger.
I decided I'd prefer to use the eggs and vegs and make an omelette or scrambled egg thing. In a cake pan. Rather than tiny bites.