Measure the wild rice, bread crumbs, paprika, nutmeg, allspice, salt, pepper and beaten egg in a large bowl and add the diced mushrooms, garlic and onions. Blend well to fully incorporate ingredients and roll into medium sized balls. In a large skillet, heat olive oil and add the meatless meatballs. Cook turning continuously until brown on each side and cooked throughout. Transfer to a tray and cover with foil.