Preheat the oven to 350 F and grease a 24-cup mini muffin pan.
Blend the cottage cheese, eggs, brown sugar, oil, and vanilla extract until smooth.
Whisk the flour, oats, baking powder, cinnamon, ginger, and salt together in a large bowl.
Stir the blended cottage cheese mixture into the dry ingredients. Fold in the grated carrot, raisins, and walnuts.
Divide the batter among the mini muffin cups, filling each one nearly to the top.
Bake for 14 to 17 minutes, until the centers spring back lightly. Cool the bites in the pan for 10 minutes before serving.