I used a deep 6 mold muffin tin for these egg bites, just be sure to grease it well so that they don't stick. If your tin is a little older, you may want to line them with a little parchment paper so that they are easy to remove. You can also make these in silicone muffin cups, I haven't tried these personally, but lots of people over on my Facebook page have said these work a treat.