For the things you like. 1.For a meal in general, 2.For a drink, 3.For anything that a person does with his/her effort. Elinize sağlık is formal, eline sağlık is informal.

esp. you say this to someone who has cooked that food for you.if you like it ofcourse :) like nice work or good job...

Teşekkür ederim ve eline sağlık :)

sorry. Edit: not "ecigent". it would be "exigent".

Not only for meal, But it usually for meal. Generally we use it for every ecigent actvities. Ex. Thanks for help, thanks for roast etc.