Preheat oven to 350°F (175°C). Lightly grease a 12-cup muffin tin or use a silicone mold for best results.
Blend the base: In a blender, combine eggs, cottage cheese, milk, garlic powder, salt, and pepper. Blend until smooth and frothy (about 30 seconds).
Add fillings: Place your bell peppers, bacon bits, and spinach evenly into each muffin cup.
Pour the egg mix: Carefully pour the blended egg mixture over the fillings, filling each cup about ¾ full.
Top with cheese: Sprinkle shredded cheddar evenly across all cups.
Bake: Place in the oven and bake for 18–22 minutes, or until the centers are set and the tops are lightly golden.
Cool & serve: Let them cool for a few minutes, then run a butter knife around the edges to release.