Mix cooked rice with minced meat. Season with salt and pepper. Mushrooms and onion cut into slices, fry in a little sunflower oil. Zucchini cut into thin strips. Shaped cake and arrange them pour the top half of the minced meat, then half of mushroom mixture and cover with the remaining mince and remaining mushroom mixture. On her arrange sliced ​​peppers and tomatoes. Sprinkle with salt and pepper. Dab with mayonnaise. Screw the ends of the zucchini. Bake at 200C, 30 minutes.