Cut the morel mushrooms in half, wash well and drain. Heat the oil in a pan. Sauté the onions, garlic, tomatoes and mushrooms. Add the rice and sauté until translucent, stirring continuously. Pour in the wine and reduce completely. Stirring frequently, add the bouillon a little at a time so that the rice is always just covered with liquid, simmer for approx. 15 mins.
Gradually add the spinach, allow to wilt, then continue to simmer for approx. 5 mins. until the rice is creamy and al dente. Stir in the cheese, season. Serve with the jelly.