Mix juice of limes, fish sauce and sambal chilli together. Stir well and set aside.

Add a third of the thinly sliced red onion to oil and cook over medium heat. Heat until onions start to brown and sweeten.

Add choice of meat substitute, add another third of the red onions, half the bell pepper and half the prepared lime-fish sauce-sambal sauce.

Cook over medium heat until meat is largely cooked through.

For the last 3-5 minutes of cooking add remaining sauce, onions and bell pepper.  Cook over medium-low heat and serve with rice, salad and crushed peanuts.