Preheat oven to 325°
Cook/microwave sweet potato if not already cooked.
Chop all vegetables.
In a large saute pan, pour in 1 Tablespoon light oil such as avocado oil. On medium heat, saute onions, bells peppers, and garlic until softened - about 10 minutes.
Remove from heat and stir in tomato paste and liquid aminos. Set aside.
While the vegetables are sauteing, drain, rinse and mash black beans along with the sweet potato. Leave some beans whole.
Mix together seasonings: ground cumin, chili powder, garlic and onion powders, smoked paprika, salt and pepper, along with the ground flax meal and the garbanzo bean powder. Set aside.
In a large bowl, mix together the sauteed vegetable mixture, black bean/sweet potato mixture, and seasonings mixture.
When everything is mix well, add in the oats, 1/4 cup at a time. Mix well. I usually have to start mixing the last 1/4 cup by hand.
With your hands, form six even patties and carefully place on cookie sheet lined with a silicone mat or parchment paper. If they break, mold back together before putting in the oven.
Cook at 325° for 30 minutes. Take out of the oven and carefully turn. Put back in and continue cooking for another 30 minutes.
These black bean burgers will be delicate. Handle with care.