Preheat the oven to around 200 degrees F to keep the pancakes warm. Pulse beans and roughly chop plantain in a food processor. Transfer to a bowl and add remaining ingredients and mix just to combine.
Heat about 2 tablespoons of oil in a large nonstick skillet or griddle (you just want a thin even coating). Drop batter, 1/4 cup at a time into the skillet, 3 to 4 pancakes should fit in the pan at a time.
Cook 3 to 4 minutes on each side over medium-high heat, or until golden brown. Transfer to an oven-safe dish and keep warm in the oven.
Continue cooking the pancakes until all the batter is finished, adding additional oil as needed.
Serve warm with butter and honey.