1. Preheat your oven to 180°C (350°F).
2. Wash the kale thoroughly, remove the tough stems, and chop the leaves into small pieces.
3. Peel the sweet potato and carrot and grate them finely.
4. In a mixing bowl, combine the chopped kale, grated sweet potato, and grated carrot.
5. Drizzle the olive oil over the mixture and mix well to ensure all ingredients are evenly coated.
6. Take small portions of the mixture and form them into bite-sized balls or patties.
7. Place the balls or patties on a baking tray lined with parchment paper.
8. Bake in the preheated oven for 20-25 minutes, or until they are firm and lightly golden.
9. Let the bites cool completely before serving them to your baby.

Summary:
This recipe is beneficial for babies as it introduces them to a variety of textures and flavors, promoting healthy eating habits from an early age. Kale is rich in vitamins A, C, and K, while sweet potatoes and carrots add a natural sweetness and are excellent sources of beta-carotene and fiber.

Storing Options:
Store any leftover Kale and Sweet Potato Bites in an airtight container in the refrigerator for up to 3 days. You can also freeze them for up to 1 month. Just reheat them in a warm oven or microwave before serving.

Possible Side Effects/Allergies:
Although this recipe uses baby-friendly ingredients, always introduce new foods to your baby one at a time to monitor for any allergic reactions. Be cautious if your baby has a known allergy to any of the ingredients. Kale can occasionally cause gas in some babies, so monitor their digestion.