Heat oil over medium heat in a large non-stick skillet, until the oil is hot and begins to shimmer, 2-3 minutes
2 tbs vegetable oil
Fry the onion until is softens and just begins to turn golden, about 2 minutes
1/4 red onion, roughly diced
Add in the tomato and fry, stirring occasionally, until softened, about 2 minutes
1 roma tomato, seeded and diced
Add in the hibiscus flowers and cook, stirring occasionally, until warmed through, about 4 minutes for flowers at room temperature
~2.5 cups cooked hibiscus flowers, roughly chopped
Add salt to taste and divide filling evenly among 6 warmed corn tortillas, serve immediately
Salt to taste, 6 6-inch diameter corn tortillas