Bubble and Squeak Recipe

Bubble and squeak is a traditional British dish made with the shallow-fried leftover vegetables from a roast dinner. The main ingredients are potato and cabbage, but carrots, peas, Brussels sprouts, or any other leftover vegetables can be added. The chopped vegetables (and cold chopped meat if used) are fried in a pan together with mashed potatoes or crushed roast potatoes until the mixture is well-cooked and brown on the sides. The dish is so named because it makes bubbling and squeaking sounds during the cooking process.
Ingredients

• 1 1/2 pounds potatoes -- peeled and chunked
• 1 pound green cabbage -- roughly chopped
• 1 small onion -- peeled and chopped
• salt and pepper to taste
• 1 large egg
• 1 knob butter (abt 2 Tablespoons)

Directions

1. Cook potatoes in salted water until soft. Drain and mash,if desire, or leave in chunks. Plunge the cabbage into boiling water (salted).  Cook for 5 mins. drain well and finely chop. (like for slaw) Mix potatoes and cabbage with the onion. Add seasoning and the egg. Put the mixture in frying pan. (It needs to be a rather deep pan). Fry in butter until golden brown. 

Source thecookingblog