Turn stove on. Add sesame oil to pan on low heat.
Add chopped onion to fry pan. Stir occasionally.
Once the onion begins to soften, add finely chopped garlic to the fry pan.
Once garlic begins to turn golden brown (1- 2 minutes), add chopped lotus root and finely chopped red pepper.
Once all the added vegetables have softened (another 1 - 2 minutes), add finely grated ginger and minced chicken.
Continue to cook on low heat, stirring occasionally, until the chicken is fully cooked.
Finally, add the cubes of sweet potato and stir.
Add soy sauce (or gluten-free alternative) to the fry pan. Stir.
And then add the mix of miso and water. Stir in.
Add sake (optional). Stir.
Continue to cook. Once most of the liquid has boiled off, turn off heat.
Serve in a bowl (or directly onto the lettuce).