Peel cucumbers and cut in half. Spoon out the seeds and cut the cucumbers into small chucks. With a beater, mix cream cheese, mayo, milk, salt/pepper, and garlic powder. Add cucumbers and green onions. Mix well. Best if served with Cool Ranch Doritos.
Cook potatoes in salt water. Drain and mash. Add butter, sour cream, cream cheese and cream or milk, if necessary. Place in a buttered casserole bowl and refrigerate. Bake 45 minutes at 350 degrees.
Combine eggs with milk. Add remaining ingredients except cereal and butter. Pour into a 10x6x2-inch baking dish. Combine slightly crushed cereal and butter. Sprinkle over top. Bake at 350 degrees for about 50 minutes.
Mix all together and put in small crock pot for 3-4 hours. Can be done the night before.