Preheat the oven to 375 degrees F. Line a baking sheet with parchment paper.
Cook the sweet potato in the oven for 50-60 minutes or in the microwave for 5-10 minutes, until soft.
Cook the quinoa according to package directions. I usually like to do steps 2 and 3 in advance to save time later on.
In a medium-sized bowl, mash the sweet potato with a fork. Mix in the quinoa, parsley, onion powder, pepper and salt (if using).
Using your hands, form the mixture into 12 mini patties, packing the mixture so that it all sticks together. Place the patties on the prepared baking sheet about an inch apart. Brush the top of each patty with half the olive oil.
Place in the oven and bake for 10 minutes. Carefully flip the patties and brush with remaining olive oil. Cook for an additional 10 minutes. Allow to cool for about 10-15 minutes. The patties will firm up during this time.
Store in the fridge for up to four days or in the freezer for up to three months.
You can cook the quinoa and sweet potato up to three days ahead of time and simply assemble the patties when ready to eat. The only part about this recipe that takes a little time is cooking the quinoa and sweet potato, so if you do this part in advance, it will save you some time in the long run.
You can either bake the sweet potato in the oven for about 50-60 minutes at 375 degrees F, or if you want the shorter method, you can pop it in the microwave for 5-7 minutes or until it's nice and soft.
For the quinoa, you'll simply want to rinse it and then bring it to a boil in some water or broth and allow to simmer for about 12-15 minutes, or until nice and fluffy. By doing this prep work, those patties be all ready to assemble when that time comes around!
If the sweet potato quinoa mixture isn't adhering together or feels a bit too dry and crumbly after mixing, add a bit more sweet potato to the mixture.
Make sure that you pack the mixture together with your hands tightly so that the patties don't fall apart when flipping. Also be very careful when flipping since the patties are delicate. I like to use a thin spatula to get right under them and flip. If some of the quinoa crumbles, simply pack it back into the patty.