- want to try Ethiopian, one of the few things I never ate
Very good and very unique. Lots of very spicy meat/veg sauces eaten with a spongy kind of naleśnik (that is you use the naleśnik to pick up a bite and eat).
Some of the dishes are 'cooked' with acids from the spices rather than heat.
There's also a very nice honey liqueur called 'tej' (rhymes with fudge) and Ethiopian coffee is the best in the world imho.
Ethiopian music is (or was the last I knew) also very nice, very distinctive.
Tex Mex --- I only spent 2 days in Mexico for work and all I remember of the food is OK salads and leathery steaks.
Mexico is like China or Italy, the cuisine is very regional. The US version is based on the extreme north (and US Southwest) which used to be Mexico.
Maybe you were in Monterrey? IIRC it's the simplest region, kind of meat and potatoes... I like central southern the best with things like chilaquiles and ceviche (fish 'cooked' in lemon juice).