Preheat oven to 450°; slice half of potatoes in ½ lengthwise, mix with 1 tbsp oil, salt/pep + fave spices (we like garlic powder), then spread on sheet pan cut-side down; roast 12-15 min til tender; reduce oven to 400°

Meanwhile, heat 1 tbsp oil in skillet over high; add ½ of bison, break into large chunks + sear undisturbed 3-4 min; flip, break into small pieces + cook 1-3 min til fully cooked; season with salt/pep

Remove potatoes from oven, scatter beans + bison on potatoes; return to oven 5-6 min til beans are hot

Divide 'nachos' between plates, dollop each with tbsp sour cream + garnish with chopped scallions