Heat a small pan with a drizzle of olive oil, and saute your onions for 5-6 minutes on medium heat until soft.
Drain and rinse the white beans and add them to a large bowl. Mash them with a fork, you can leave some pieces chunky.
Add in the grated beets, onions, garlic, nutritional yeast, spices and BBQ sauce. Mix well until evenly incorporated.
Add in the oat flour and the breadcrumbs. Combine well, I like to mix with my hands to make sure it all gets evenly combined.
Refrigerate the mixture for 20 minutes. If it's too soft after refrigerating, add an extra 1-2 tbsp more oat flour if needed.
Preheat the oven to 375 F.
Form 6 palm-sized patties with the mixture and layer them on a parchment lined sheet pan. Drizzle each one with olive oil.
Bake for 15 minutes, flip each one then bake for an additional 10-15 minutes. Alternatively, you can grill them on a greased pan for about 3-4 minutes per side on medium heat.
To make the sauce, combine the ingredients together in a small bowl and mix until smooth. Serve over your burgers with your favorite toppings.
Keep refrigerated for up to 5 days, or freeze for up to 3 months.