Preheat oven to 180 degrees. Keep a 13x9 inch baking pan ready.
Peel and slice the potatoes thinly. Soak it in boiling water for 5 minutes. Drain and toss it with the salt and pepper. Layer it at the bottom of the pan.
For prepaying the second layer, heat oil. Saute in the flour till it releases and nutty aroma. Add in the milk and whisk till the mixture becomes thick.
Add in the rice, mayonnaise, chilli sauce and seasonings and give it a good mix. Spread it on top of the potato layer.
For the third layer, heat oil, sizzle the garlic. Saute the onions till wilted.
Add in the chicken and cook till it turns white.
Add in the remaining ingredients and give it a good toss. Cook till the chicken is done and there is no water in the pan. If there is liquid, dry it up on high heat.
Layer the chicken on top of the rice layer.
Sprinkle the mozarella cheese, coriander leaves and chilli flakes on top of the chicken layer.
Bake in the oven for 25-30 minutes or till the cheese is all melted and the top is golden brown.
Serve warm as is or with a side of salad.
Notes
Please feel free to omit or replace the chicken with any proteins of your choice!