Preheat oven (electric cooker: 200 °C/circulating air: 175 °C/gas: level 3). 1⁄4 Bring l water to the boil with 1 tbsp. oil and 1 tsp. salt. Remove the pot from the stove. Stir in couscous, cover and allow to swell for approx. 2 minutes (see package instructions).
Let it cool down.
Peel the vegetable onion and cut into large pieces. Clean, wash and chop the peppers and zucchini. Wash and chop the tomatoes.
Heat 2 tablespoons of oil in a frying pan. Brown the onion, bell pepper and zucchini. Add tomato paste and tomatoes. Season with herbs from Provence, salt and pepper. 1⁄8 l water, bring to the boil and simmer for about 5 minutes.
Grate cheese. Wash thyme, pluck. Mix cheese, thyme and couscous. Put vegetable mixture into four small or one large greased casserole dish. Cover with couscous. Bake in a hot oven for about 15 minutes.