Combine the chicken marinade ingredients in a bowl and toss with the chicken pieces. Cover with plastic wrap and put in the fridge for 30 minutes
Stir the uncooked brown rice, chicken stock, turmeric, cumin and salt together. Bring it to a boil over high heat, then turn the heat down to low (or medium-low) and simmer for about 40 to 45 minutes until the rice is tender and all of the liquid has been absorbed
After the rice has cooked, stir in the green peas
Fire up the grill!
Soak some wooden skewers in water to avoid charring, or use metal ones
Thread the chopped bell pepper, the mushrooms and the marinated chicken pieces onto the skewers
Cook the chicken and vegetables on the grill until a thermometer registers an internal temperature of 165 °F
Serve the turmeric rice and chicken skewers together with the lettuce