The Cleveland Clinic Diet

Here is the meal plan:

Day One:
 Breakfast: Black coffee, water, or tea; half of a grapefruit or pink grapefruit juice; and one slice of toast with 1 or 2 tbl of peanut butter
 Lunch: Black coffee, water, or tea; 1/2 cup of water-packed tuna; and one slice of dry toast
Dinner: Black coffee, water, or tea; 3 oz lean meat; 1 cup green beans; 1 cup beets; 1 cup vanilla ice cream; and one small apple

Day Two:
 Breakfast: Black coffee, water, or tea; one egg, any style; one banana (some versions say 1/2 banana); and one slice of dry toast
Lunch: Black coffee, water, or tea; 1 cup of cottage cheese; and five saltine crackers
Dinner: Black coffee, water, or tea; two hot dogs; 1/2 cup carrots; 1 cup broccoli (or cabbage); one banana (some versions say 1/2 banana); and 1/2 cup vanilla ice cream

Day Three:
 Breakfast: Black coffee, water, or tea; five saltine crackers; one egg (or one slice cheddar cheese); and one 4-oz glass of apple juice
Lunch: Black coffee, water, or tea; one hard-boiled egg; one small apple; and one slice of dry toast
Dinner: Black coffee, water, or tea; 1 cup tuna, chicken, or turkey; 1 cup cauliflower or green beans; 1 cup beets; 1 cup cantaloupe or one small apple; and 1/2 cup vanilla ice cream

Source: http://www.diet.com/g/cleveland-clinic-3day-diet

This is very similar, but not identical to the military diet.  It has more calories on day 3.