"Rocket" is a bitter, super sharp tasting herb. You may sub with leafy greens of choice. All measurements can be altered to taste.
Made it healthier. Omitted the butter when frying the mushrooms - 18 Jan 2010 (Review from Allrecipes UK | Ireland)
Used different ingredients. Used mixed leaves & lettuce in place of rocket - 18 Jan 2010 (Review from Allrecipes UK | Ireland)