Add the onion, dill, lemon juice, salt, pepper, oil, mustard and cottage cheese to a blender. Blend until smooth.
½ red onion, 1 clamshell fresh dill, juice of ½ lemon, ¼ teaspoon salt, pinch black pepper, 1 tablespoon avocado oil, 1 tablespoon dijon mustard, 1 cup cottage cheese