First off, in an oven safe casserole dish, empty the two cans of tinned tomatoes with the herbs and balsamic vinegar. Give it a good mix. Season with salt and black pepper.
Sprinkle the Cajun spice in a saucer, and dip each chicken thigh, ensure it gets covered with spice. Add more if needed.
Arrange the chicken thighs on top of the tomatoes and bake in the oven at 190 degrees Celsius covered for 30 minutes.
Remove lid and bake for another 15 minutes uncovered until the chicken becomes dark and crispy.
Remove from oven and serve the chicken pieces on cooked couscous with extra tomato sauce from the casserole pot.