>mentioning it would reveal my country of origin
it would, but it'd hardly matter if you hadn't said that. Most recipes my boyfriend makes are asian dishes, and most I make are either American or European. I personally know someone that makes mostly Mexican dishes, and someone that makes italian and greek.
A lot of people have preferences for broad categories they cook from, or find inspiration in.
Before the beans, the last recipe I picked out was greek, particularly an old spartan dish, which currently is more like something you'd find in Germany. It's a blood-based soup.
>cheese and milk
That might reveal a bit about your origins, narrowing it down so it isn't a good chunk of asia. I remember when I was in the philippines I couldn't get milk fricken anywhere, except dried/instant milk. Pork blood, on the other hand, is very easy to get there.
Also milk and cheese are hard on my stomach, I tend to avoid recipes with them. A little milk in my tea is where I get most the milk I consume.
On the topic of drinks, what do you usually have? What do you like most?
Is there any particular reason for your picks?