Preheat your oven to 350°F.
Heat the olive oil in a skillet over medium heat and crack an egg into it. Season with salt and pepper, then fry until cooked through – about 3-4 minutes per side.
In a bowl, mix together the flour, yeast, and cornflakes. Stir in the cooked egg and dandelion petals until well combined.
Form the mixture into 6 patties and place on a parchment-lined baking sheet. Top each patty with a dandelion blossom before baking for 20-25 minutes.
In another bowl, combine the cooked brown rice, black beans, and seasonings of your choice.
Toast the buns and top with a patty and some of the rice-bean mixture. Your Dandelion Burger is ready to serve.