01 - Preheat oven to 350°F. Grease a standard 12-cup muffin tin with non-stick spray or line with silicone muffin liners.
02 - Add eggs, cottage cheese, milk, salt, pepper, and garlic powder to a blender. Blend until completely smooth and frothy, about 30 seconds.
03 - In a mixing bowl, toss together the spinach, red bell pepper, green onions, and shredded cheddar cheese until evenly distributed.
04 - Pour the blended egg mixture over the vegetable-cheese mixture. Stir gently with a spatula just until combined.
05 - Divide the mixture evenly among the 12 muffin cups, filling each about 3/4 full.
06 - Bake for 18-22 minutes until the egg bites are set and lightly golden on top. They should spring back when touched.
07 - Let cool in the pan for 5 minutes. Run a thin knife around the edges of each cup to release the bites. Serve warm or at room temperature.