Into a large skillet over medium low heat, add oil. Once heated, add onions and cook until translucent, about 3-5 minutes.
Add the ginger and garlic, cook for 1 minute, or until fragrant. Add lentils and stir together. Add cabbages and carrots and stir together, let cook for 3 minutes, stir often so it doesn't stick.
Add soy sauce, sesame oil, rice vinegar, and maple syrup. Stir together and cook until the sauce has mostly soaked up into the ingredients. Remove from heat and service with any desired toppings including sauces listed in notes below. Store leftovers in a air tight container in the fridge.
