I use the IP egg bites mold with this recipe from Instant Pot - https://recipes.instantpot.com/recipe/fluffy-egg-bites/.
Instead of using foil to cover the molds, I use the cover that comes with the IP egg bit mold. I have two molds and I stack them on their trivet and cook per the recipe -- steam for 8 minutes, wait 10 minutes, release pressure. I mix all of the egg custard ingredients in a blender.
IP has a few recipes that use their egg bites mold: https://recipes.instantpot.com/?coursefilter=&cuisinefilter=&dietfilter=&search=egg+bites&bsearch=Search. The corndog minis look like fun! https://recipes.instantpot.com/recipe/corndog-minis/