Preheat the oven to 350℉. Place a rimmed baking sheet on the rack below the rack you're going to use for the egg bites. Pour some hot water onto the baking sheet. This is going to create a steaming effect for cooking the egg bites. I like to use a 6-cup silicone pan for this recipe (see tips for a link to the one I use). But you can also use a regular-sized muffin tin generously sprayed with nonstick spray (the recipe will make more than 6 if you use a regular muffin tin).
In a blender container, combine the eggs and cottage cheese. Blend until smooth. Then pour the eggs/cottage cheese into a large measuring cup, and stir in the cheese and salt/pepper.
If using a silicone pan, place it on a baking sheet (or it will be too flimsy to move to the oven). A regular muffin pan does not need to be placed onto a baking sheet. Divide the egg mixture between the muffin cups, filling each about ¾-full. Spoon any cheese that is left in the measuring cup into the egg cups. Top each with some spinach and sun dried tomatoes.
Bake for 20 to 25 minutes, or until the eggs are completely cooked. They will puff up, and then they'll deflate a bit as they cool down. Remove the egg bites from the oven, let cool for a few minutes, then use a knife/spoon to take them out of the cups to serve.
Notes
I like to use these silicone pans for making egg bites. They turn out so perfectly!
Egg bites can be stored in the fridge for up to 3 days or frozen for up to 2 months. They re-heat nicely in the microwave.