My family used to fix what we called Dutch Dish for lunch. I have never seen anyone else eat or fix this.
Chop tomatoes, cucumbers and onion in a bowl. Pour milk to cover, ( no the milk DOES NOT curdle). Chill for an hour and eat with salt & pepper sprinkled on.
Best with fresh veggies from the garden.
Whenever I fix this at work people look at me like I have 3 heads. Don't know what they are missing.