Preheat oven to 450°; drain beans, then rinse + pat dry; toss with 1-2 tbsp oil, salt/pep + half the seasoning blend; scatter beans on sheet pan + roast 25-30 min, flipping 2-3 times throughout cooking, until beans are crisp on the outside but soft in the middle

Meanwhile, cut onion in half from root to stem; peel + roughly chop ½ (or whole) onion; chop beets into quarters + set aside

Stack 4 tortillas + wrap in foil; place in oven 8-10 min to warm, flipping the parcel over halfway through cook time; divide to plates

Toss onions + beets with beans; divide all to tortillas + sprinkle with 2 tbsp cheese—fold + enjoy!