Preheat the oven to 350 degrees F/177 degrees C. Line a large baking sheet with parchment paper or a silicone mat and set aside.
First, prep the veggies. If using frozen riced cauliflower, let it thaw in the fridge and use a paper towel to blot out any excess water. If you don't have time to thaw it, cook it in a skillet for a few minutes to get rid of extra moisture. If using fresh riced cauliflower, you can add it to the recipe as is. Finally, if you don't have pre-made riced cauliflower, pulse cauliflower florets in a food processor fitted with an S-blade until you have tiny pieces. You can also chop them very finely with a knife. For the sweet potato, use a hand or box grater, preferably one with tiny holes, to finely grate it. A small shred works great for this recipe because it easily blends into the ground chicken and the flavor gets dispersed throughout the nuggets, but a larger shred also works.
In a large bowl, combine the riced cauliflower, shredded sweet potato, ground chicken, garlic powder, cumin, and salt. Mix until well-combined.
Pour the breadcrumbs onto a rimmed plate or shallow bowl.
Scoop out about 1 tablespoon of the mixture and shape into an oval that resembles a chicken nugget. Roll the nugget in the breadcrumbs to coat. Place on the lined baking sheet and repeat with the rest of the mixture until you have about 28 nuggets, give or take a few.
If desired, you can spray the tops of the nuggets with some avocado oil or olive oil spray. This can help them get a little crispier in the oven, but I have tried it with and without an oil spray and have found no significant difference in results. So, it's up to you!
Bake for 28 to 32 minutes, flipping halfway through, until lightly browned and crispy.
Enjoy warm as is or with a dipping sauce of choice!
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