Wash the lettuce and slice thinly.
On a frying pan with little oil, put the squash chopped in cubes, the beetroot, the champignons and the potato. Stir-fry at low heat. Take out and toss the pinenuts to stir-fry on the same pan until golden.
Prepare the cuscus. Let soak until it tender and cook. In case it’s not ready, heat the water a bit more. Mix all ingredients in a salad bowl, add the mozzarella, the oil, the vinegar, the salt and the thyme… and done!!.